{"title":"PAC OEM Integration, AmpPRO \u0026 LocPRO","description":"\u003ch2\u003eKeep the Factory Radio. Fix the Signal Path Around It.\u003c\/h2\u003e\u003cp\u003ePAC AmpPRO, AmpPRO SUB, LocPRO, and their matching harnesses give us different ways to add amplifiers, add bass, access factory signal, or retain OEM functions without replacing equipment that does not need to be replaced.\u003c\/p\u003e\u003cp\u003eAn amplifier-integration interface, subwoofer interface, and T-harness do different jobs. The right path depends on the vehicle, factory audio system, signal location, and what part of the system is changing.\u003c\/p\u003e\u003cp\u003eFor the bigger picture, see our \u003ca href=\"\/pages\/dsp-tuning-services\"\u003eDSP and OEM integration guide\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"pac-ap4-ch21-amppro-4-chrysler-dodge-jeep-ram-amplifier-integration","title":"PAC AmpPRO 4 — Chrysler \/ Dodge \/ Jeep \/ RAM Amplifier Integration — AP4-CH21","description":"\u003ch2\u003ePAC AP4-CH21 AmpPRO 4 Chrysler \/ Dodge \/ Jeep \/ RAM Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOn the supported older Chrysler-family premium systems, the factory radio can stay. The factory amplifier just does not need to keep deciding how the new system has to sound.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-CH21 gives us a clean integration point ahead of the speaker wiring so an aftermarket amplifier or DSP can be added without building the system from a pile of already-processed factory channels. PAC provides front, rear and non-fading\/subwoofer preamp outputs while keeping the supported factory controls and vehicle audio functions tied to the original radio.\u003c\/p\u003e\u003cp\u003eThat makes CH21 the right kind of product when the customer wants a real amplifier or DSP upgrade but still likes the factory dash, Uconnect controls and everyday vehicle behavior. Volume, fade, balance, bass, mid and treble stay integrated in supported applications, along with Uconnect, Bluetooth audio and warning chimes.\u003c\/p\u003e\u003ch3\u003eWhere CH21 Fits in the Chrysler Family\u003c\/h3\u003e\u003cp\u003eCH21 belongs to the older supported data-bus-controlled amplified architecture. PAC’s application list includes many 2007–2018 Chrysler, Dodge, Jeep and RAM platforms, including supported Wrangler JK applications. Newer CH41 and CH42 vehicles are different systems, so we choose the interface from the actual factory architecture instead of from the badge on the hood.\u003c\/p\u003e\u003cp\u003eIf the new amplifier is taking over factory speaker channels, a matching PAC APH harness can provide the clean return path into the vehicle’s original speaker wiring. If the downstream DSP or amplifier accepts optical, PAC also supports the optional APA-TOS1 TOSLINK output instead of forcing the system to stay on analog RCA.\u003c\/p\u003e\u003ch3\u003eFull-System Integration, Not Just a Bass Add-On\u003c\/h3\u003e\u003cp\u003eAP4-CH21 gives us front, rear and non-fading\/subwoofer signal access. That makes it a full-system integration piece. If the only problem is weak bass and the cabin speakers are staying on the factory system, a PAC AmpPRO SUB interface can be the more focused solution.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-CH21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select Chrysler, Dodge, Jeep and RAM vehicles with compatible data-bus-controlled factory-amplified systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported factory audio retained:\u003c\/strong\u003e Uconnect, Bluetooth audio and warning chimes where applicable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker wiring option:\u003c\/strong\u003e Compatible PAC APH harness available separately where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAP4-CH21 AmpPRO module\u003c\/li\u003e\n\u003cli\u003e22-pin MS-CAN harness\u003c\/li\u003e\n\u003cli\u003eBass \/ sub-level knob and harness\u003c\/li\u003e\n\u003cli\u003eManufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698200707305,"sku":"AP4-CH21","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ch21_c2fb07c5-d7af-4ebc-beb3-f927befed742.jpg?v=1787224698"},{"product_id":"pac-ap4-ch41-r-2-amppro-4-chrysler-dodge-jeep-ram-amplifier-integration","title":"PAC AmpPRO 4 — Chrysler \/ Dodge \/ Jeep \/ RAM Amplifier Integration R.2 — AP4-CH41","description":"\u003ch2\u003ePAC AP4-CH41 R.2 AmpPRO 4 Chrysler \/ Dodge \/ Jeep \/ RAM Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCH41 is where the Chrysler-family integration gets more interesting, because PAC uses the same platform across supported amplified systems and certain non-amplified applications.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOn a factory-amplified vehicle, AP4-CH41 R.2 does the job we expect from AmpPRO: keep the factory radio and supported controls, then provide front, rear and non-fading\/subwoofer preamp outputs for the aftermarket DSP or amplifiers. The new system starts from a much cleaner signal path instead of being built after the factory amplifier has already done its EQ and routing.\u003c\/p\u003e\u003cp\u003eOn select non-amplified vehicles, CH41 can also reconfigure the factory radio for aftermarket amplification. That is a completely different use case from simply adding a subwoofer. Once PAC changes the radio behavior for that application, the aftermarket amplifier has to power the vehicle speakers. The interface is becoming the front end for the whole new amplified system.\u003c\/p\u003e\u003ch3\u003eThe Exact Chrysler Architecture Matters\u003c\/h3\u003e\u003cp\u003eCH41 covers a later 52-pin platform than CH21, while Uconnect 5 vehicles move into CH42 or use the CH42 expansion path where PAC specifies. Screen size, ANC equipment, factory amplification and exact vehicle application can all change the parts list.\u003c\/p\u003e\u003cp\u003eIf the vehicle is factory amplified and the new amplifier is taking over speaker channels, PAC’s matching APH harness can handle the return path into the factory wiring. If a supported non-amplified application has stand-alone Active Noise Cancellation, PAC calls for the ANC system to be addressed rather than leaving it active to fight the upgraded audio system.\u003c\/p\u003e\u003cp\u003eCertain Uconnect 5 applications use APH-CH42 with AP4-CH41 R.2. That is a specific pairing, not a generic way to convert every CH41 job into Uconnect 5 support.\u003c\/p\u003e\u003ch3\u003eAnalog or Optical From the Same Integration Point\u003c\/h3\u003e\u003cp\u003eThe standard AmpPRO outputs provide up to 5V RMS analog signal. If the downstream DSP or amplifier accepts optical, the optional APA-TOS1 can provide a 48 kHz \/ 24-bit TOSLINK handoff on the supported analog-based AP4 path.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-CH41 R.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select Chrysler, Dodge, Jeep and RAM amplified systems plus specified non-amplified applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported factory audio retained:\u003c\/strong\u003e Uconnect, Bluetooth audio, navigation prompts and warning chimes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-amplified use:\u003c\/strong\u003e Aftermarket amplification is required for the vehicle speakers when PAC’s non-amplified workflow is used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelated harnessing:\u003c\/strong\u003e Compatible APH and ANC-bypass harnesses available separately where required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAP4-CH41 R.2 AmpPRO module\u003c\/li\u003e\n\u003cli\u003e52-pin MS-CAN harness\u003c\/li\u003e\n\u003cli\u003eBass \/ sub-level knob and harness\u003c\/li\u003e\n\u003cli\u003eManufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698200871145,"sku":"AP4-CH41","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ch41-r2_296a5c8b-8b96-421e-8cf2-2c7bfb3d3731.png?v=1787224710"},{"product_id":"pac-ap4-ch42-amppro-4-2021-chrysler-dodge-jeep-ram-amplifier-integration","title":"PAC AmpPRO 4 — 2021+ Chrysler \/ Dodge \/ Jeep \/ RAM Amplifier Integration — AP4-CH42","description":"\u003ch2\u003ePAC AP4-CH42 AmpPRO 4 2021+ Chrysler \/ Dodge \/ Jeep \/ RAM Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eUconnect 5 moved the newer Chrysler-family vehicles into another audio architecture. CH42 is the AmpPRO path when the supported vehicle uses that newer 32-pin \/ 12-pin connection and the factory radio is staying.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-CH42 gives the aftermarket system front, rear and non-fading\/subwoofer preamp outputs while keeping the factory controls and prompts PAC supports. Instead of asking a DSP to undo whatever the factory audio path has already done, we start the new amplifier or processor from PAC’s integration point.\u003c\/p\u003e\u003cp\u003eThat makes CH42 useful for a full system built behind the factory screen: keep Uconnect and the normal vehicle behavior, then choose the DSP and amplifiers around the speakers, channel count and tuning goals instead of around the limitations of the stock amplifier.\u003c\/p\u003e\u003ch3\u003eAmplified and Non-Amplified Applications Are Not the Same Job\u003c\/h3\u003e\u003cp\u003ePAC supports CH42 on select amplified and non-amplified systems, but the application details matter. On a supported non-amplified workflow, the aftermarket amplification requirements have to be followed correctly; this is not a universal shortcut for adding only a subwoofer to every Uconnect 5 vehicle.\u003c\/p\u003e\u003cp\u003eNewer support has also been added through firmware. PAC specifically issued updated CAN support for specified 2021+ Grand Cherokee, 2022+ Wagoneer\/Grand Wagoneer and 2025+ RAM applications. On those later vehicles, updated firmware and the exact factory-amplifier requirement are part of the fitment check.\u003c\/p\u003e\u003ch3\u003eSignal Options After AmpPRO\u003c\/h3\u003e\u003cp\u003eThe standard preamp outputs provide up to 5V RMS analog signal. If the downstream DSP or amplifier accepts optical, PAC’s optional APA-TOS1 can provide a 48 kHz \/ 24-bit TOSLINK signal on the supported path. LPHEXT17 is also available when the vehicle-side connection and the equipment location need more physical reach.\u003c\/p\u003e\u003cp\u003eIf the system belongs on CH41 or uses the APH-CH42 expansion path with CH41 R.2 instead, use that application rather than treating all Uconnect 5 vehicles as interchangeable.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-CH42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select 2021+ Chrysler, Dodge, Jeep and RAM vehicles using supported 32-pin \/ 12-pin radio architecture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory audio:\u003c\/strong\u003e Supports specified amplified and non-amplified systems; requirements vary by application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported factory audio retained:\u003c\/strong\u003e Uconnect, Bluetooth audio, navigation prompts and warning chimes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtension option:\u003c\/strong\u003e Optional LPHEXT17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware:\u003c\/strong\u003e Install PAC’s required firmware for newly supported applications where specified\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698202312937,"sku":"AP4-CH42","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ch42_181297fa-3426-4423-9379-9bffcaf86b14.jpg?v=1787224726"},{"product_id":"pac-ap4-fd11-amppro-4-ford-lincoln-sony-amplifier-integration","title":"PAC AmpPRO 4 — Ford Sony \/ Lincoln THX Amplifier Integration — AP4-FD11","description":"\u003ch2\u003ePAC AP4-FD11 AmpPRO 4 Ford Sony \/ Lincoln THX Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOn supported older Ford Sony and Lincoln THX amplified systems, the factory radio can stay exactly where it is. The upgrade starts by getting a clean signal before the new amplifiers have to work around the factory processing.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-FD11 provides front, rear and non-fading\/subwoofer preamp outputs for an aftermarket amplifier or DSP while retaining the supported factory controls and vehicle audio functions. That gives us a much better foundation for a full-system upgrade than grabbing speaker-level output after the OEM amplifier.\u003c\/p\u003e\u003cp\u003eFactory volume, fade, balance, bass, mid and treble stay tied into the original radio in supported applications, along with SYNC, Bluetooth audio and warning chimes. The customer keeps the factory interface they already know while the aftermarket equipment takes over the part of the system we actually want to improve.\u003c\/p\u003e\u003ch3\u003eFD11 vs. FD21 vs. the Newer A2B Interfaces\u003c\/h3\u003e\u003cp\u003eFD11 belongs to the older supported Ford\/Lincoln data-bus-controlled amplified architecture, including specified Ford Sony and Lincoln THX applications. FD21 covers another later Ford Sony\/B\u0026amp;O branch, and the newer B\u0026amp;O A2B systems move to FD31 or FD32. Those are different signal architectures, not simple revisions of one product.\u003c\/p\u003e\u003cp\u003eIf the new amplifier is taking over factory speaker channels, PAC’s APH-FD01 can provide the speaker return path through the original vehicle wiring. If the downstream DSP or amplifier accepts optical, the optional APA-TOS1 can add a 48 kHz \/ 24-bit TOSLINK output to the analog-based FD11 path.\u003c\/p\u003e\u003ch3\u003eFull-System Signal Access\u003c\/h3\u003e\u003cp\u003eFD11 gives us front, rear and non-fading\/subwoofer outputs, so this is the right kind of interface when the build is moving beyond a bass-only add-on. If the cabin speakers are staying on the factory system and the customer only needs subwoofer signal, the AmpPRO SUB family may be the more focused solution.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-FD11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select 2007–2014 Ford and Lincoln vehicles with compatible data-bus-controlled amplified audio, including specified Ford Sony and Lincoln THX systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported factory audio retained:\u003c\/strong\u003e SYNC, Bluetooth audio and warning chimes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker wiring option:\u003c\/strong\u003e Optional APH-FD01 where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAP4-FD11 AmpPRO module\u003c\/li\u003e\n\u003cli\u003e24-pin MS-CAN vehicle harness\u003c\/li\u003e\n\u003cli\u003eBass \/ sub-level knob and harness\u003c\/li\u003e\n\u003cli\u003eManufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698202378473,"sku":"AP4-FD11","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-fd11_b7762ba4-6bcf-4ef7-97b2-13119dde09d1.jpg?v=1787224737"},{"product_id":"pac-ap4-fd21-amppro-4-ford-sony-b-o-amplifier-integration","title":"PAC AmpPRO 4 — Ford Sony \/ B\u0026O Amplifier Integration — AP4-FD21","description":"\u003ch2\u003ePAC AP4-FD21 AmpPRO 4 Ford Sony \/ B\u0026amp;O Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eFD21 is for the Ford systems that sit between the older Sony architecture and the newer A2B B\u0026amp;O platforms. The factory radio stays, but we stop building the upgrade after the factory amplifier has already shaped the signal.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-FD21 provides front, rear and non-fading\/subwoofer preamp outputs for the aftermarket DSP or amplifiers while retaining the supported factory controls and vehicle audio functions. The new system gets a clean signal foundation without asking the customer to give up SYNC or the factory interface.\u003c\/p\u003e\u003cp\u003eFactory volume, fade, balance, bass, mid and treble remain integrated in supported applications, along with SYNC, Bluetooth audio and warning chimes. That makes FD21 useful when the build is a real front\/rear\/subwoofer amplifier upgrade rather than a simple bass add-on.\u003c\/p\u003e\u003ch3\u003eThe Factory Amplifier Decides the Fit\u003c\/h3\u003e\u003cp\u003ePAC validates FD21 on specific Sony and B\u0026amp;O systems. For example, PAC notes that certain 2018–2019 Super Duty trucks can be compatible with either supported Sony or B\u0026amp;O equipment, while 2019+ Mustang applications require the supported B\u0026amp;O system. An amplified but unbadged analog Mustang system is not the same architecture and is not covered just because it has a factory amplifier.\u003c\/p\u003e\u003cp\u003eConfirm the actual factory audio package and amplifier instead of ordering from year\/model alone. Older Sony systems can belong on FD11, while newer A2B B\u0026amp;O systems move to FD31 or FD32.\u003c\/p\u003e\u003ch3\u003eBuild the Rest of the System From the Right Signal\u003c\/h3\u003e\u003cp\u003eThe 5V RMS analog outputs can feed aftermarket amplifiers directly or go into a DSP for crossover, EQ, time alignment and routing. APH-FD01 can provide the factory speaker-wiring return path on supported applications. 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FD31 lets us remove the factory amplifier from that digital chain instead of adding better equipment after it.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-FD31 extracts the audio from the supported A2B system and gives the aftermarket build both analog preamp outputs and optical TOSLINK. The factory radio and supported vehicle commands stay in place, but the B\u0026amp;O amplifier no longer has to be the part deciding how the new system is fed.\u003c\/p\u003e\u003cp\u003eThat is the big difference between FD31 and the older FD11\/FD21 products. Those earlier interfaces integrate around different Ford amplified architectures. On a supported FD31 application, the factory amplifier is unplugged or removed and the new amplifier takes over the speaker channels through the supplied bypass\/speaker connections.\u003c\/p\u003e\u003ch3\u003eWhy A2B Makes the DSP Choice More Interesting\u003c\/h3\u003e\u003cp\u003eFor a conventional amplifier build, FD31 provides front, rear and non-fading\/subwoofer analog outputs up to 5V RMS. If the system is built around a DSP with optical input, the included TOSLINK path is usually the cleaner handoff because the digital extraction is already part of the interface. There is no reason to buy APA-TOS1 separately for this product.\u003c\/p\u003e\u003cp\u003eFrom there, the system can be laid out around the actual speakers and tuning goals: active front stage, rear fill, subwoofer channels, dedicated amplification and proper DSP control. 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It keeps the factory radio and compatible factory amplifier in place, then gives the aftermarket subwoofer amplifier a controlled non-fading low-frequency signal instead of making us grab a random speaker wire and hope the factory processing behaves.\u003c\/p\u003e\u003cp\u003eThat is the right kind of solution when the customer wants stronger, cleaner bass but is not asking us to move the front and rear speakers onto new amplification.\u003c\/p\u003e\u003ch3\u003eAPSUB vs. the Full AP4-CH21\u003c\/h3\u003e\u003cp\u003eThe difference is scope. AP4-CH21 gives us front, rear and non-fading\/subwoofer signal for a full amplifier or DSP upgrade. APSUB-CH21 is deliberately narrower: its output is for the subwoofer system only.\u003c\/p\u003e\u003cp\u003eThat keeps the parts list and installation focused when the factory cabin speakers are staying exactly where they are. 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Once a stronger aftermarket subwoofer enters the vehicle, that correction can work against the new bass stage and create strange output, cancellation or unwanted low-frequency behavior.\u003c\/p\u003e\u003cp\u003ePAC includes the bypass harness so the supported ANC system is addressed as part of the install instead of leaving it active and hoping it does not interfere.\u003c\/p\u003e\u003ch3\u003eSubwoofer Integration Only\u003c\/h3\u003e\u003cp\u003eAPSUB-CH41 provides a variable subwoofer output up to 5V RMS. It is not a full-range front\/rear signal source. 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That is the clean answer when the customer likes the rest of the system and simply wants more authority below it.\u003c\/p\u003e\u003ch3\u003eThe Factory Audio Package Still Decides Fitment\u003c\/h3\u003e\u003cp\u003eMany supported applications use Ford’s Sony system, but PAC’s coverage is more specific than the badge suggests. Certain 2018–2019 Super Duty applications can use supported Sony or B\u0026amp;O systems, while supported 2019+ Mustang applications require the compatible B\u0026amp;O system.\u003c\/p\u003e\u003cp\u003eAn amplified Ford with an unbadged analog amplifier is not automatically an APSUB-FD21 vehicle. 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The interface works with the factory system rather than turning a bass-only upgrade into a full amplifier-replacement job.\u003c\/p\u003e\u003ch3\u003eANC Is Part of the Bass Problem on Equipped Vehicles\u003c\/h3\u003e\u003cp\u003eGM Active Noise Cancellation can react to stronger aftermarket bass and work against the new subwoofer. PAC includes the ANC-GM03 bypass harness so ANC can be disabled correctly on equipped applications instead of leaving the microphones and cancellation system to fight the bass after the install.\u003c\/p\u003e\u003ch3\u003eWhat the Subwoofer Amplifier Actually Gets\u003c\/h3\u003e\u003cp\u003eAPSUB-GM61 uses the factory full-range fixed-level source plus vehicle data to create a variable 5V RMS preamp output with bass EQ and level control. PAC applies a \u003cstrong\u003e350 Hz, 24 dB-per-octave Linkwitz-Riley low-pass filter\u003c\/strong\u003e to the output and provides a data-controlled remote turn-on rated at \u003cstrong\u003e2 amps\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe included level controller gives the customer bass adjustment after the system is set up. 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The new system is not sharing speaker channels with it or trying to correct its output after the fact.\u003c\/p\u003e\u003ch3\u003eThe Optical Path Is Already Part of FD32\u003c\/h3\u003e\u003cp\u003eFD32 provides front, rear and non-fading\/subwoofer analog outputs up to 5V RMS, but it also includes a variable two-channel TOSLINK optical output. If the DSP or amplifier accepts optical, the digital handoff is already built into the interface package—APA-TOS1 is not an extra part we need to add.\u003c\/p\u003e\u003cp\u003eThat makes FD32 a strong starting point for a DSP-based build where we want to keep the factory screen and controls but replace the amplification architecture behind it. 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GM71 is the AmpPRO interface for the supported vehicles where the factory Bose amplifier needs to come out of that network cleanly.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-GM71 extracts the audio from the vehicle’s digital architecture and provides front, rear and non-fading\/subwoofer outputs for the aftermarket system while keeping the factory radio and supported vehicle audio functions in place. The new DSP or amplifiers get a usable signal foundation without being stacked behind the factory Bose amplifier.\u003c\/p\u003e\u003cp\u003eThat is the key distinction from GM61. GM61 works with the older MOST50 Bose architecture and keeps the supported factory amplifier connected for communication. GM71 belongs to the newer Ethernet system, and the factory Bose amplifier cannot remain in the supported installation. PAC includes the amplifier-bypass harness because the new system is replacing that stage.\u003c\/p\u003e\u003ch3\u003eAnalog and Optical Are Both Built In\u003c\/h3\u003e\u003cp\u003eGM71 provides 5V RMS front, rear and non-fading\/subwoofer analog outputs for a conventional amplifier or DSP input. It also includes a variable two-channel TOSLINK optical output. If the processor accepts optical, the digital handoff is already part of the interface rather than something we add with a separate APA-TOS1.\u003c\/p\u003e\u003cp\u003eFactory volume, fade, balance, bass, mid and treble remain integrated in supported applications. PAC also retains warning chimes, navigation prompts, Bluetooth audio and telematics audio where equipped, so replacing the factory amplifier does not mean stripping the vehicle of the audio functions tied to the original system.\u003c\/p\u003e\u003ch3\u003eFitment Comes From the Network, Not the Bose Badge\u003c\/h3\u003e\u003cp\u003eA 2019+ Chevrolet, GMC or Cadillac with Bose is not automatically a GM71 vehicle. The exact year, model, infotainment architecture and factory amplifier all have to match PAC’s application data.\u003c\/p\u003e\u003cp\u003ePAC also calls out connector selection during installation. The data-wire positions have to match the correct factory connector; using the wrong connector can leave the system with no audio even when the rest of the harness appears to fit.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-GM71\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 Ethernet-audio amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select 2019+ General Motors vehicles with compatible Bose Ethernet audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal extraction:\u003c\/strong\u003e Vehicle digital data network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory amplifier:\u003c\/strong\u003e Cannot be retained in supported GM71 installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker connection:\u003c\/strong\u003e Amplifier-bypass harness included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog outputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital output:\u003c\/strong\u003e Variable two-channel TOSLINK optical output included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported retained audio:\u003c\/strong\u003e Warning chimes, navigation prompts, Bluetooth audio and telematics audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698208735465,"sku":"AP4-GM71","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-gm71_9b51d54d-1608-4b51-af58-27f53192126e.jpg?v=1787224802"},{"product_id":"pac-ap4-gm81-amppro-4-2023-gm-bose-a2b-amplifier-integration","title":"PAC AmpPRO 4 — 2023+ GM Bose A2B Amplifier Integration — AP4-GM81","description":"\u003ch2\u003ePAC AP4-GM81 AmpPRO 4 2023+ GM Bose A2B Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGM changed the Bose architecture again with A2B. GM81 is the AmpPRO interface for the supported newer vehicles where the factory Bose amplifier is part of that digital network and needs to be replaced, not worked around.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-GM81 extracts the audio from the A2B system and provides front, rear and non-fading\/subwoofer outputs for the aftermarket DSP or amplifiers while keeping the factory radio and supported vehicle audio functions in place. The factory Bose amplifier is disconnected during the install, and PAC supplies the harnessing needed to hand the speaker side over to the new system.\u003c\/p\u003e\u003cp\u003eThat gives us a cleaner starting point than taking signal after the Bose amplifier and trying to undo its processing. The factory interface stays familiar to the customer; the aftermarket system gets to control the part of the audio chain we are actually upgrading.\u003c\/p\u003e\u003ch3\u003eGM61, GM71 and GM81 Solve Three Different GM Systems\u003c\/h3\u003e\u003cp\u003eGM61 is the older MOST50 Bose architecture and keeps the supported factory amplifier connected. GM71 moves to Ethernet audio and replaces the factory amplifier. GM81 moves again to A2B and also replaces the factory amplifier.\u003c\/p\u003e\u003cp\u003eThose are architectural differences, not product generations where the newest part automatically wins. A Bose badge or a 2023+ model year is not enough to choose GM81. The actual factory audio network has to match PAC’s application.\u003c\/p\u003e\u003ch3\u003eOptical Is Already Part of the Interface\u003c\/h3\u003e\u003cp\u003eGM81 provides analog preamp outputs up to 5V RMS, but it also includes a variable two-channel TOSLINK optical output. If the DSP accepts optical, the digital handoff is already available from the integration interface—there is no need to add APA-TOS1 separately.\u003c\/p\u003e\u003cp\u003eFactory volume, fade, balance, bass, mid and treble remain integrated in supported applications. 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The upgrade starts by getting signal before the factory amplifier turns it into the speaker layout Toyota or Lexus originally designed.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-TY11 provides front, rear and non-fading\/subwoofer preamp outputs for the aftermarket DSP or amplifiers while keeping the supported factory controls and vehicle audio functions in place. That gives us a much cleaner foundation than tapping a collection of already-processed speaker channels after the OEM amplifier.\u003c\/p\u003e\u003cp\u003eFactory volume, fade, balance, bass, mid and treble stay integrated in supported applications, along with Bluetooth, navigation, safety-system audio and warning chimes where PAC supports them.\u003c\/p\u003e\u003ch3\u003eThe JBL Badge and the Radio Connector Both Matter\u003c\/h3\u003e\u003cp\u003eOn Toyota applications, PAC requires the supported JBL or JBL Synthesis factory-amplified system. An amplified Toyota without that identification can use a different analog architecture and should not be treated as a TY11 vehicle just because an amplifier is present.\u003c\/p\u003e\u003cp\u003eLexus fitment follows its own rules, including the required premium-audio configuration with the applicable center channel and subwoofer. Some overlapping 2012–2015 Toyota applications also used two different radio connector families. TY11 requires the supported 20-pin BHA8113-style connection; vehicles with the 10\/6-pin BHA1761-style connection move to the TY12 family instead.\u003c\/p\u003e\u003cp\u003eThat connector check is why we verify the actual radio when the application overlaps. Removing the radio and confirming the plug is faster than building the whole system around the wrong AmpPRO family.\u003c\/p\u003e\u003ch3\u003eBuild the New System From a Clean Full-Range Signal\u003c\/h3\u003e\u003cp\u003eThe 5V RMS front, rear and non-fading\/subwoofer outputs can feed aftermarket amplifiers directly or go into a DSP for crossover control, EQ, time alignment and routing. If the new amplifier is taking over factory speaker channels, the matching PAC APH harness depends on the exact Toyota\/Lexus application and can provide the return path into the original speaker wiring.\u003c\/p\u003e\u003cp\u003eIf the downstream DSP or amplifier accepts optical, the analog-based TY11 path can use the optional APA-TOS1 for a 48 kHz \/ 24-bit TOSLINK output.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-TY11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select Toyota and Lexus vehicles with compatible premium factory-amplified audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota requirement:\u003c\/strong\u003e Supported applications require visibly identified JBL or JBL Synthesis audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLexus requirement:\u003c\/strong\u003e Supported premium system with applicable center-channel and subwoofer configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported retained audio:\u003c\/strong\u003e Bluetooth, navigation, safety-system audio and warning chimes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker wiring option:\u003c\/strong\u003e Matching PAC APH harness varies by vehicle application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAP4-TY11 AmpPRO module\u003c\/li\u003e\n\u003cli\u003eVehicle-specific IE Bus harnessing\u003c\/li\u003e\n\u003cli\u003eBass \/ sub-level knob and harness\u003c\/li\u003e\n\u003cli\u003eManufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698209718505,"sku":"AP4-TY11","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ty11_4df15ba9-b993-4443-8a31-74dfc093cb79.jpg?v=1787224830"},{"product_id":"pac-ap4-ty12-amppro-4-toyota-lexus-jbl-amplifier-integration","title":"PAC AmpPRO 4 — Toyota and Lexus JBL Amplifier Integration — AP4-TY12","description":"\u003ch2\u003ePAC AP4-TY12 AmpPRO 4 Toyota \/ Lexus JBL Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTY12 solves the same basic problem as TY11—keep the factory radio, get a clean signal for the new system—but it belongs to a different Toyota\/Lexus connector family.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-TY12 provides front, rear and non-fading\/subwoofer preamp outputs for an aftermarket DSP or amplifiers while retaining the supported factory controls and vehicle audio functions. The new system gets a flat, usable signal foundation instead of starting after the factory premium amplifier has already divided and processed the channels.\u003c\/p\u003e\u003ch3\u003eThe Connector Is the Real TY11 vs. TY12 Decision\u003c\/h3\u003e\u003cp\u003eSome 2012–2015 Toyota applications can look identical in the dash and still use different radio connectors. PAC specifies TY12 when the supported vehicle has the 10\/6-pin BHA1761-style connection. The overlapping 20-pin BHA8113-style version belongs to TY11 instead.\u003c\/p\u003e\u003cp\u003eThat is not a detail we guess from the trim. PAC’s own fitment guidance is to inspect the radio connection when the application overlaps. Confirming the plug before ordering is faster than finding out the wrong AmpPRO family is on the bench after the vehicle is apart.\u003c\/p\u003e\u003ch3\u003eToyota and Lexus Have Different Premium-Audio Rules\u003c\/h3\u003e\u003cp\u003eSupported Toyota applications need the correct JBL\/JBL Synthesis factory system. An amplified Toyota without that supported digital premium architecture is not automatically compatible just because an OEM amplifier is present.\u003c\/p\u003e\u003cp\u003eLexus compatibility is more restrictive. PAC excludes Mark Levinson from TY12, and its supported TY12 Lexus applications are listed without navigation. Those are real fitment boundaries, so the factory audio and navigation package have to be identified before the interface is chosen.\u003c\/p\u003e\u003ch3\u003eWhere It Fits in the New System\u003c\/h3\u003e\u003cp\u003eThe 5V RMS analog outputs can feed aftermarket amplifiers directly or go into a DSP for crossover, EQ, time alignment and routing. If the new amplifier is taking over factory speaker channels, the appropriate PAC APH harness varies by vehicle and can provide the clean return path into the original speaker wiring.\u003c\/p\u003e\u003cp\u003eIf the downstream DSP or amplifier accepts optical, the analog-based TY12 path can use the optional APA-TOS1 for a 48 kHz \/ 24-bit TOSLINK output.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-TY12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select Toyota and Lexus vehicles with compatible premium factory-amplified audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverlapping Toyota fitment:\u003c\/strong\u003e Supported applications use the 10\/6-pin BHA1761-style radio connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLexus restriction:\u003c\/strong\u003e Mark Levinson systems are not compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLexus navigation:\u003c\/strong\u003e PAC’s supported TY12 Lexus applications are listed without navigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported retained audio:\u003c\/strong\u003e Bluetooth, navigation, safety-system audio and warning chimes where applicable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker wiring option:\u003c\/strong\u003e Matching PAC APH harness varies by vehicle application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAP4-TY12 AmpPRO module\u003c\/li\u003e\n\u003cli\u003eVehicle-specific IE Bus harnessing\u003c\/li\u003e\n\u003cli\u003eBass \/ sub-level knob and harness\u003c\/li\u003e\n\u003cli\u003eManufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698210701545,"sku":"AP4-TY12","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ty12_f2494ac0-28ef-40ea-98b8-513402fc7f9c.png?v=1787224840"},{"product_id":"pac-ap4-ty13-amppro-4-2018-toyota-lexus-jbl-amplifier-integration","title":"PAC AmpPRO 4 — 2018+ Toyota \/ Lexus JBL Amplifier Integration — AP4-TY13","description":"\u003ch2\u003ePAC AP4-TY13 AmpPRO 4 2018+ Toyota \/ Lexus JBL Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTY13 moves the integration point to the radio on the supported later Toyota and Lexus premium systems. That gives us a cleaner place to build the new amplifier or DSP system before the factory amplifier has already divided and processed the audio.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-TY13 connects at the factory radio harness and provides front, rear and non-fading\/subwoofer preamp outputs while retaining the supported factory controls and vehicle audio functions. The factory screen and source stay familiar to the customer, but the aftermarket system gets a much better signal foundation than a pile of processed speaker-level channels.\u003c\/p\u003e\u003ch3\u003eWhy the Radio-Side Connection Matters\u003c\/h3\u003e\u003cp\u003eTY11 and TY12 belong to earlier Toyota\/Lexus premium-audio architectures with their own connector rules. TY13 is a later application family and PAC designed the interface to connect at the radio harness. That changes where we meet the factory system and keeps the integration cleaner for the supported vehicles.\u003c\/p\u003e\u003cp\u003eThe 5V RMS RCA outputs can feed aftermarket amplifiers directly or go into a DSP for crossover, EQ, time alignment and routing. If the new amplifier is taking over factory speaker channels, APH-TY02 can provide the speaker-wiring return path where PAC specifies it.\u003c\/p\u003e\u003ch3\u003eFull-System AP4 vs. a Bass-Only Upgrade\u003c\/h3\u003e\u003cp\u003eTY13 gives us front, rear and non-fading\/subwoofer signal, so it makes sense when the build is upgrading more than just bass. If the factory cabin-speaker system is staying intact and the customer only needs a clean subwoofer signal, APSUB-TY13 can be the more focused answer.\u003c\/p\u003e\u003cp\u003eIf the downstream DSP or amplifier accepts optical, the analog-based TY13 path can use the optional APA-TOS1 for a 48 kHz \/ 24-bit TOSLINK handoff.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-TY13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select 2018+ Toyota and Lexus vehicles with compatible premium factory-amplified audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection point:\u003c\/strong\u003e Factory radio harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer RCA preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported retained audio:\u003c\/strong\u003e Warning chimes, navigation prompts, Bluetooth and telematics audio where equipped\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker wiring option:\u003c\/strong\u003e Optional APH-TY02 where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698211193065,"sku":"AP4-TY13","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ty13_6ed8256a-a7fe-4012-bc05-e84fdd82c987.png?v=1787224852"},{"product_id":"pac-ap4-ty14-amppro-4-2022-toyota-jbl-amplifier-integration","title":"PAC AmpPRO 4 — 2022+ Toyota JBL Amplifier Integration — AP4-TY14","description":"\u003ch2\u003ePAC AP4-TY14 AmpPRO 4 2022+ Toyota JBL Amplifier Integration\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTY14 is for the newer supported Toyota premium-audio architecture using PAC’s 30-, 28- and 10-pin connection family. The factory radio stays, but the aftermarket system gets a cleaner place to start than the processed output of the JBL amplifier.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAP4-TY14 provides front, rear and non-fading\/subwoofer preamp outputs for an aftermarket DSP or amplifiers while retaining the supported factory controls and vehicle audio functions. The customer keeps the factory interface; the new system gets the signal access needed to build a proper amplifier or DSP upgrade behind it.\u003c\/p\u003e\u003ch3\u003eTY14 Is a Different Toyota Family, Not Just a Newer TY13\u003c\/h3\u003e\u003cp\u003eThe 2022+ headline is only part of the fitment. TY14 belongs to supported vehicles using PAC’s specified 30-, 28- and 10-pin connection set. TY13 covers another late-model Toyota\/Lexus architecture, so we use PAC’s exact application data rather than choosing the highest TY number because the vehicle is newer.\u003c\/p\u003e\u003cp\u003eOn supported TY14 installations, the compatible factory amplifier can remain connected where the system design calls for it. That gives us flexibility to replace selected amplified channels or build the system in stages instead of making every job an all-or-nothing amplifier replacement.\u003c\/p\u003e\u003ch3\u003eWhere It Fits in the New System\u003c\/h3\u003e\u003cp\u003eThe 5V RMS front, rear and non-fading\/subwoofer outputs can feed aftermarket amplifiers directly or go into a DSP for crossover, EQ, time alignment and routing. Factory volume, fade, balance, bass, mid and treble stay integrated in supported applications, along with Bluetooth audio, navigation prompts and warning chimes where PAC supports them.\u003c\/p\u003e\u003cp\u003eIf the DSP or amplifier accepts optical, the analog-based TY14 path can use the optional APA-TOS1 for a 48 kHz \/ 24-bit TOSLINK output. The included sub-level controller gives the customer separate bass-level adjustment after the system is tuned.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AP4-TY14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO 4 amplifier integration interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select 2022+ Toyota vehicles with compatible premium factory-amplified audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection family:\u003c\/strong\u003e Supported 30-, 28- and 10-pin applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Front, rear and non-fading\/subwoofer preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum analog output:\u003c\/strong\u003e 5V RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory amplifier:\u003c\/strong\u003e Can remain connected in supported TY14 installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory controls retained:\u003c\/strong\u003e Volume, fade, balance, bass, mid and treble in supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported retained audio:\u003c\/strong\u003e Bluetooth audio, navigation prompts and warning chimes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-level control:\u003c\/strong\u003e Included remote controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital option:\u003c\/strong\u003e Optional APA-TOS1 TOSLINK output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAP4-TY14 AmpPRO module\u003c\/li\u003e\n\u003cli\u003eVehicle-specific harnessing\u003c\/li\u003e\n\u003cli\u003eBass \/ sub-level knob and harness\u003c\/li\u003e\n\u003cli\u003eManufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51698211553513,"sku":"AP4-TY14","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ap4-ty14_d8758661-bc90-4792-bf6f-b276974c8ce9.jpg?v=1787224869"},{"product_id":"pac-locpro-advanced-lph-vehicle-specific-t-harnesses","title":"PAC LocPRO Advanced Non-Amplified Radio Integration T-Harnesses","description":"\u003ch2\u003ePAC LocPRO Advanced LPH Factory Radio Amp \/ DSP T-Harnesses\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eKeeping the factory radio but adding a LOC, DSP or amplifier? The LPH harness is the clean plug-in way to get signal and speaker wiring access without cutting the OE radio harness.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese are primarily \u003cstrong\u003enon-amplified-system\u003c\/strong\u003e T-harnesses. The correct variant is controlled by the exact factory radio connector and audio architecture—not by the vehicle badge or year alone. If the truck\/car has a factory amplifier, use the correct amplified integration path instead of assuming an LPH harness applies.\u003c\/p\u003e\u003ch3\u003eChoose the exact architecture\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHCH21 — Chrysler\/Dodge\/Jeep 2007–2020:\u003c\/strong\u003e supported non-amplified applications in PAC’s CH21 branch. Do not extend it into later CH41\/Uconnect 5 systems just because the connector family looks similar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHCH41 — Chrysler\/Dodge\/Jeep 2013+:\u003c\/strong\u003e supported non-amplified CH41 applications. Exact vehicle, radio and ANC configuration control fitment; “2013+ RAM” is not a blanket rule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHCH42 — Chrysler 2021+ Uconnect 5:\u003c\/strong\u003e the Uconnect 5 non-amplified branch. Do not substitute it for CH41 from year alone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHFD21 — Ford 2011–2020:\u003c\/strong\u003e supported non-amplified FD21 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHFD31 — Ford 2018–2023:\u003c\/strong\u003e supported later non-amplified Ford applications in PAC’s FD31 branch. Do not extend the harness into 2024+ Ford platforms unless that exact application supports FD31.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHGM51 — GM 2014–2019:\u003c\/strong\u003e supported non-amplified GM applications in the GM51 branch; exact radio\/RPO architecture still controls fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHGM52 — GM 2016–2019:\u003c\/strong\u003e supported non-amplified GM52 applications. Overlapping model years with GM51 do not make the harnesses interchangeable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHGM71 — GM 2019+:\u003c\/strong\u003e supported non-amplified GM71 applications. Confirm the exact model\/year\/RPO before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHGM72 — GM 2019–2022 IOS\/IOT\/IOK:\u003c\/strong\u003e supported non-amplified IOS\/IOT\/IOK applications in the GM72 family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHHD02 — Honda 2006–2011:\u003c\/strong\u003e supported non-amplified Honda HD02 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHHD03 — Honda\/Acura 2008–2021:\u003c\/strong\u003e supported non-amplified HD03 applications; overlapping Honda years require the exact factory radio configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHHD04 — Honda 2016–2021 24-pin:\u003c\/strong\u003e supported non-amplified HD04 applications using the relevant 24-pin radio architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHHY03 — Hyundai\/Kia 2007–2015:\u003c\/strong\u003e supported earlier non-amplified HY03 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHHY04 — Hyundai\/Kia 2010–2018:\u003c\/strong\u003e supported non-amplified HY04 applications; the exact radio connector decides fitment because the year range overlaps HY03.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHHY06 — Hyundai\/Kia 35\/38-pin:\u003c\/strong\u003e supported non-amplified HY06 applications; the 35\/38-pin radio architecture controls selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHNI03 — Infiniti\/Nissan\/Subaru 2002–2020:\u003c\/strong\u003e supported non-amplified NI03 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHTSL01 — Tesla Model 3 \/ Model Y:\u003c\/strong\u003e PAC’s Tesla-specific audio-integration T-harness branch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHTY01 — Toyota\/Subaru\/Scion 10\/6-pin:\u003c\/strong\u003e supported non-amplified TY01 applications using the relevant 10- and 6-pin architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHTY02 — Toyota 10\/28-pin:\u003c\/strong\u003e supported later non-amplified Toyota TY02 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHVW01 — European vehicles 2001–2017:\u003c\/strong\u003e supported VW01\/European-platform applications; exact vehicle and factory-audio package still control fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLPHVW02 — European vehicles 2015–2021:\u003c\/strong\u003e supported later VW02\/European-platform applications; do not select it solely because the model year overlaps VW01.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhere it fits in a real system\u003c\/h3\u003e\u003cp\u003eThe LPH harness gives the installer a vehicle-specific plug-in point for factory speaker-level signal and speaker-output wiring. From there, a LOC can create RCA signal, a DSP can handle summing\/EQ\/time alignment, or a compatible amplifier can accept high-level input directly. If the processor or amplifier is mounted away from the radio, PAC LPHEXT17 is the matching 17-foot extension for supported LPH installations.\u003c\/p\u003e\u003ch3\u003eManufacturer Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e LocPRO Advanced LPH vehicle-specific T-harnesses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary use:\u003c\/strong\u003e factory-radio signal and speaker-wiring access for aftermarket LOC, DSP or amplifier integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory audio:\u003c\/strong\u003e primarily non-amplified applications; match the exact vehicle and factory radio\/audio architecture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e plug-in vehicle connection intended to avoid cutting the original radio harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtension option:\u003c\/strong\u003e LPHEXT17 for supported remote-mount installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHarness only.\u003c\/strong\u003e LOC, DSP, amplifier and any additional vehicle-specific retention\/bypass parts are separate unless explicitly included by their own product listing.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Chrysler \/ Dodge \/ Jeep 2007–2020 — LPHCH21","offer_id":51698510266601,"sku":"LPHCH21","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Chrysler \/ Dodge \/ Jeep 2013+ — LPHCH41","offer_id":51705145983209,"sku":"LPHCH41","price":129.0,"currency_code":"USD","in_stock":true},{"title":"Chrysler 2021+ — Uconnect 5 — LPHCH42","offer_id":51705146015977,"sku":"LPHCH42","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Ford 2011–2020 — LPHFD21","offer_id":51705146048745,"sku":"LPHFD21","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Ford 2018–2023 — LPHFD31","offer_id":51705146081513,"sku":"LPHFD31","price":109.0,"currency_code":"USD","in_stock":true},{"title":"GM 2014–2019 — IO5 \/ IO6 — LPHGM51","offer_id":51705146114281,"sku":"LPHGM51","price":109.0,"currency_code":"USD","in_stock":true},{"title":"GM 2016–2019 — IOA \/ IOB — LPHGM52","offer_id":51705146147049,"sku":"LPHGM52","price":109.0,"currency_code":"USD","in_stock":true},{"title":"GM 2019+ — IOR — LPHGM71","offer_id":51705146179817,"sku":"LPHGM71","price":149.0,"currency_code":"USD","in_stock":true},{"title":"GM 2019–2022 — IOS \/ IOT \/ IOK — LPHGM72","offer_id":51705146212585,"sku":"LPHGM72","price":149.0,"currency_code":"USD","in_stock":true},{"title":"Honda 2006–2011 — LPHHD02","offer_id":51705146245353,"sku":"LPHHD02","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Honda \/ Acura 2008–2021 — LPHHD03","offer_id":51705146278121,"sku":"LPHHD03","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Honda 2016–2021 — 24-Pin — LPHHD04","offer_id":51705146310889,"sku":"LPHHD04","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Hyundai \/ Kia 2007–2015 — LPHHY03","offer_id":51705146343657,"sku":"LPHHY03","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Hyundai \/ Kia 2010–2018 — LPHHY04","offer_id":51705146376425,"sku":"LPHHY04","price":119.0,"currency_code":"USD","in_stock":true},{"title":"Hyundai \/ Kia — 35 \/ 38-Pin — LPHHY06","offer_id":51705146409193,"sku":"LPHHY06","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Infiniti \/ Nissan \/ Subaru 2002–2020 — 20-Pin — LPHNI03","offer_id":51705146441961,"sku":"LPHNI03","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Tesla Model 3 \/ Model Y — Audio Integration — LPHTSL01","offer_id":51705146474729,"sku":"LPHTSL01","price":139.0,"currency_code":"USD","in_stock":true},{"title":"Toyota \/ Subaru \/ Scion — 10 \/ 6-Pin — LPHTY01","offer_id":51705146507497,"sku":"LPHTY01","price":129.0,"currency_code":"USD","in_stock":true},{"title":"Toyota — 10 \/ 28-Pin — LPHTY02","offer_id":51705146540265,"sku":"LPHTY02","price":129.0,"currency_code":"USD","in_stock":true},{"title":"European Vehicles 2001–2017 — LPHVW01","offer_id":51705146573033,"sku":"LPHVW01","price":129.0,"currency_code":"USD","in_stock":true},{"title":"European Vehicles 2015–2021 — LPHVW02","offer_id":51705146605801,"sku":"LPHVW02","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-lphch21-01_87a8d818-bb3d-480b-a53f-5d1793b40d2e.png?v=1787230897"},{"product_id":"pac-amppro-aph-vehicle-specific-integration-harnesses","title":"PAC AmpPRO Factory Amplifier Speaker Harnesses","description":"\u003ch2\u003ePAC AmpPRO APH Factory Amplifier Speaker Harnesses\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAmpPRO gets a clean signal out of the factory system. APH is how we get the new amplifier back into the vehicle’s original speaker wiring without cutting up the factory harness.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThat second half of the job matters. Once an aftermarket amplifier is making the power, every speaker channel still has to reconnect to the vehicle. PAC’s APH harnesses plug in at the supported factory-amplifier location and give us direct access to those speaker circuits, which can save a lot of unnecessary wire runs through doors, pillars and the rest of the vehicle.\u003c\/p\u003e\u003cp\u003eOn applications where the original amplifier still has to remain connected for vehicle-data communication, the APH architecture is built around that too. The aftermarket amplifier can take over the speaker channels we are upgrading while selected factory-powered circuits can stay on the OEM amp when the system design and application allow it.\u003c\/p\u003e\u003ch3\u003eChoose the APH Harness by the Factory Amplifier Connection\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-CH01 — Chrysler \/ Dodge \/ Jeep \/ RAM:\u003c\/strong\u003e the standard Chrysler-family factory-amplified speaker-return harness for supported AP4 installations using this amplifier connection. Choose it only where CH01 is specified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-CH03 — Chrysler \/ Dodge \/ Jeep \/ RAM:\u003c\/strong\u003e a different Chrysler-family amplifier connector than CH01. Same basic job—getting aftermarket amplifier output back into the factory speaker wiring—but it is not interchangeable with CH01.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPHCH42 — AP4-CH41 R.2 expansion:\u003c\/strong\u003e this is the odd one in the family. It is an expansion harness for specified newer Chrysler, Dodge, Jeep and RAM applications and \u003cstrong\u003emust be used with AP4-CH41 R.2\u003c\/strong\u003e. It is not a substitute speaker-return harness for CH01 or CH03.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-FD01 — Ford \/ Lincoln 2007–2019:\u003c\/strong\u003e for supported factory-amplified Ford and Lincoln systems using the FD01 connection. PAC specifically developed this harness to simplify amplifier replacement while retaining the original speaker wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-FD02 — Ford \/ Lincoln B\u0026amp;O \/ Revel:\u003c\/strong\u003e choose this branch when the supported Ford\/Lincoln premium system uses the B\u0026amp;O or Revel amplifier connection that calls for FD02 rather than FD01.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-GM02 — GM \/ Chevrolet \/ GMC 2014–2019 Bose:\u003c\/strong\u003e for supported GM Bose factory-amplified systems using the GM02 amplifier connection. It gives direct access to the OE speaker circuits at the factory amp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-TY01 — Toyota factory amplified:\u003c\/strong\u003e the Toyota branch for supported amplified vehicles using the TY01 factory-amplifier connection. Do not choose it from the Toyota badge alone; the exact amplifier connection decides between TY01, TY02, TY03 and TY04.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-TY02 — Toyota \/ Lexus factory amplified:\u003c\/strong\u003e for supported Toyota and Lexus premium systems using the TY02 amplifier connection. It solves the same speaker-return problem as TY01 with a different OE architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-TY03 — Toyota 2003–2010:\u003c\/strong\u003e a legacy\/discontinued Toyota amplified-system harness. Use it only where TY03 is specified and the part is available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPH-TY04 — Toyota \/ Lexus:\u003c\/strong\u003e a legacy\/discontinued Toyota\/Lexus amplified-system harness for the TY04 connection. It is not interchangeable with TY01, TY02 or TY03; confirm the exact application and availability first.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow the APH Architecture Works\u003c\/h3\u003e\u003cp\u003ePAC uses male and female amplifier-side connectors so the factory amplifier can remain in the data loop where AmpPRO requires it. The longer speaker leads route selected channels toward the aftermarket amplifier. Channels that still need to remain on factory power can be reconnected through the short leads when the application and system design support that approach.\u003c\/p\u003e\u003cp\u003ePAC recommends tone-testing the speaker circuits before final connection because factory channel assignments can change by year and trim. Confirming the actual speaker circuit prevents a channel-assignment mistake before the system is powered up.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e PAC AmpPRO APH vehicle-specific speaker\/amplifier connection harnesses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection point:\u003c\/strong\u003e Supported factory-amplifier location\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary use:\u003c\/strong\u003e Route aftermarket-amplifier output into the vehicle’s original speaker wiring without cutting the OEM harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem flexibility:\u003c\/strong\u003e Long leads route selected circuits to the aftermarket amplifier; short leads can retain selected factory-amplifier channels where supported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory amplifier:\u003c\/strong\u003e Remains connected where required for AmpPRO vehicle-data communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Match the exact vehicle, trim, factory audio package, amplifier connector and AmpPRO interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e PAC recommends tone-testing speaker circuits before final connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHarness only unless the selected variant specifically states otherwise.\u003c\/strong\u003e AmpPRO interface, DSP and aftermarket amplifier are sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Chrysler \/ Dodge \/ Jeep \/ RAM — APH-CH01","offer_id":51698521669865,"sku":"APH-CH01","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Chrysler \/ Dodge \/ Jeep \/ RAM — APH-CH03","offer_id":51705154142441,"sku":"APH-CH03","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Chrysler \/ Dodge \/ Jeep \/ RAM — AP4-CH41 R.2 Expansion — APHCH42","offer_id":51705154175209,"sku":"APHCH42","price":53.0,"currency_code":"USD","in_stock":true},{"title":"Ford \/ Lincoln 2007–2019 — APH-FD01","offer_id":51705154207977,"sku":"APH-FD01","price":159.0,"currency_code":"USD","in_stock":true},{"title":"Ford \/ Lincoln — B\u0026O \/ Revel — APH-FD02","offer_id":51705154240745,"sku":"APH-FD02","price":79.0,"currency_code":"USD","in_stock":true},{"title":"GM \/ Chevrolet \/ GMC 2014–2019 — Bose — APH-GM02","offer_id":51705154273513,"sku":"APH-GM02","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Toyota — Factory Amplified — APH-TY01","offer_id":51705154306281,"sku":"APH-TY01","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Toyota \/ Lexus — Factory Amplified — APH-TY02","offer_id":51705154339049,"sku":"APH-TY02","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Toyota 2003–2010 — DISCONTINUED — APH-TY03","offer_id":51706890485993,"sku":"APH-TY03","price":53.0,"currency_code":"USD","in_stock":true},{"title":"Toyota \/ Lexus — DISCONTINUED — APH-TY04","offer_id":51706890518761,"sku":"APH-TY04","price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-aph-ch01-01_c5076d8e-f5ed-4139-914a-bc3c43f98c89.jpg?v=1787231159"},{"product_id":"brand-closeout-pac-srk-ram13h-heigh10-integration-installation-kit-for-ram","title":"PAC RAM HEIGH10 Radio Integration \u0026 Installation Kit — Closeout — SRK-RAM13H","description":"\u003ch2\u003ePAC SRK-RAM13H RAM HEIGH10 Radio Integration \u0026amp; Installation Kit\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eA HEIGH10 can fill the opening in these RAM trucks. SRK-RAM13H is what keeps the truck from losing the factory functions that were tied to the radio we just removed.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOn the supported RAM applications, the original radio is tied into more than music. Climate controls, steering-wheel controls, cameras, factory-amplifier behavior and vehicle settings can all be part of the factory screen. SRK-RAM13H combines the dash hardware and RadioPRO Advanced integration needed to put a Stinger HEIGH10 in the truck without treating all of those functions like separate problems afterward.\u003c\/p\u003e\u003ch3\u003eMore Than a Dash Kit\u003c\/h3\u003e\u003cp\u003eThe value is that PAC designed the physical and electronic sides together. Factory-matched plastics mount the HEIGH10 in the dash, while the CH4A-SRK integration module and vehicle-specific harnessing handle the supported RAM data and retained functions.\u003c\/p\u003e\u003cp\u003eOn compatible trucks, the HEIGH10 can display and control supported climate functions, show vehicle information and performance gauges, display tire pressures and door\/engine information, and provide access to supported customizable vehicle settings. Factory steering-wheel controls, amplifier integration and supported backup\/cargo cameras can remain part of the finished install as well.\u003c\/p\u003e\u003ch3\u003eWhere This Kit Makes Sense\u003c\/h3\u003e\u003cp\u003eIf the goal is specifically a HEIGH10 in the supported RAM body style, buying the matched integration package makes more sense than piecing the install together from a generic dash kit, separate data interface, camera adapter and steering-wheel-control module.\u003c\/p\u003e\u003cp\u003eThe kit also includes the smaller parts that usually become the last-minute problems in a radio swap: antenna adapters, USB retention hardware, camera retention and an external chime speaker for the supported application.\u003c\/p\u003e\u003ch3\u003eFitment Still Needs to Match the Exact Truck\u003c\/h3\u003e\u003cp\u003ePAC’s current product listing specifies \u003cstrong\u003e2013–2018 RAM Truck and 2019–2023 RAM Classic\u003c\/strong\u003e. The Classic body-style distinction matters; this kit is not a blanket fitment claim for every newer RAM simply because the model year falls in that window.\u003c\/p\u003e\u003cp\u003eWe still verify the exact year, body style, factory radio and equipment before ordering. PAC also states that SRK-RAM13H is \u003cstrong\u003enot compatible with manual-transmission vehicles\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe Stinger HEIGH10 itself is sold separately. This is the vehicle integration and installation package that makes the supported radio swap work correctly.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SRK-RAM13H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC RadioPRO Advanced HEIGH10 integration and installation kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent published coverage:\u003c\/strong\u003e 2013–2018 RAM Truck and 2019–2023 RAM Classic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission restriction:\u003c\/strong\u003e Not compatible with manual-transmission vehicles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM radio support:\u003c\/strong\u003e Compatible supported base, 5-inch and 8.4-inch factory radio configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetained functions:\u003c\/strong\u003e Supported steering-wheel controls, factory-amplifier integration, climate functions, vehicle information and factory camera functions where equipped\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle outputs:\u003c\/strong\u003e Supported vehicle-speed, illumination, reverse and parking-brake signals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFactory-matched HEIGH10 mounting dash plastics\u003c\/li\u003e\n\u003cli\u003eCH4A-SRK RadioPRO Advanced vehicle-integration module\u003c\/li\u003e\n\u003cli\u003ePAC-Link adapter for Stinger multimedia units\u003c\/li\u003e\n\u003cli\u003eHigh-definition factory-camera retention module\u003c\/li\u003e\n\u003cli\u003eVehicle-specific plug-and-play wiring harness\u003c\/li\u003e\n\u003cli\u003eSatellite-radio antenna adapter\u003c\/li\u003e\n\u003cli\u003eAM\/FM antenna adapter\u003c\/li\u003e\n\u003cli\u003eUSB retention cables\u003c\/li\u003e\n\u003cli\u003eExternal chime speaker\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHEIGH10 sold separately.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCloseout:\u003c\/strong\u003e This SMS listing is being sold from remaining closeout inventory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFinal sale:\u003c\/strong\u003e This closeout item is final sale. Review the exact condition, fitment and included accessories before purchase.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":51699661275369,"sku":"SRK-RAM13H","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-srk-ram13h-kit.jpg?v=1787263386"},{"product_id":"pac-lphext17-17-ft-locpro-advanced-t-harness-extension","title":"PAC LocPRO Advanced 17 FT T-Harness Extension — LPHEXT17","description":"\u003ch2\u003ePAC LPHEXT17 17-Foot LocPRO Advanced T-Harness Extension\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eThe factory radio may be the right place to pick up the signal, but it is often the wrong place to mount the DSP or amplifier.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLPHEXT17 adds 17 feet of reach to supported PAC LocPRO Advanced LPH harness installations so the vehicle-specific connection can stay at the radio while the integration equipment moves to the part of the vehicle that actually makes sense.\u003c\/p\u003e\u003cp\u003eThat can be under a seat, behind a rear panel, in the cargo area or on a dedicated amp rack. The point is to keep the plug-in harness architecture intact instead of cutting the LPH wiring apart and hand-extending every speaker-level circuit just because the equipment needs to live farther away.\u003c\/p\u003e\u003ch3\u003eUse the Extension to Solve Packaging, Not Signal\u003c\/h3\u003e\u003cp\u003eLPHEXT17 does not convert the factory signal, add RCA output, tune the system or provide amplifier power. The connected LOC, DSP or high-level-input amplifier still does that work. This harness simply carries the supported LPH connection to a remote equipment location.\u003c\/p\u003e\u003cp\u003eThat separation is useful because it lets us plan the equipment rack around power wiring, cooling, service access and system layout without giving up the clean factory-radio connection PAC built into the LPH harness.\u003c\/p\u003e\u003ch3\u003eCompatibility Comes From the Underlying LPH Harness\u003c\/h3\u003e\u003cp\u003eThis is not a universal 17-foot speaker-wire extension. The selected vehicle-specific PAC LPH harness has to support LPHEXT17. We choose the correct LPH application first, then add the extension only when the real routing distance calls for it.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LPHEXT17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC LocPRO Advanced audio-integration T-harness extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 17 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Compatible PAC vehicle-specific LPH audio-integration T-harnesses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose:\u003c\/strong\u003e Extend the supported LPH connection for remote LOC, DSP or amplifier mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eExtension harness only.\u003c\/strong\u003e Vehicle-specific LPH harness, LOC, DSP and amplifier are sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"LPHEXT17 — 17-Foot LocPRO T-Harness Extension","offer_id":51706890682601,"sku":"LPHEXT17","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-lphext17_4119be07-5940-4f9d-9181-2afb038e782f.png?v=1787423427"},{"product_id":"pac-anc-ch01-active-noise-cancellation-bypass-harness-chrysler-jeep-ram","title":"PAC Active Noise Cancellation Bypass — Chrysler \/ Jeep \/ RAM — ANC-CH01","description":"\u003ch2\u003ePAC ANC-CH01 Active Noise Cancellation Bypass Harness\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOnce the factory audio system gets real aftermarket amplification, a stand-alone ANC module can start correcting for an acoustic environment that no longer exists.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eActive Noise Cancellation uses cabin microphones and the factory audio system to generate low-frequency correction. PAC specifies bypassing the compatible ANC audio path on supported Chrysler-family applications when aftermarket amplification is added, both to keep the new system from fighting that correction and to protect the ANC module from a system it was not designed to drive.\u003c\/p\u003e\u003cp\u003eANC-CH01 does that through factory-style plug-in connectors instead of cutting the vehicle wiring.\u003c\/p\u003e\u003ch3\u003eBypass the Audio Function, Keep the Vehicle Happy\u003c\/h3\u003e\u003cp\u003eThe important detail is that the ANC module does not simply disappear from the vehicle. PAC keeps it connected to the data bus for diagnostic health while bypassing its audio role in the upgraded system.\u003c\/p\u003e\u003cp\u003eThat is cleaner than unplugging the module completely, and it is far better than leaving ANC active and finding out after tuning that the vehicle is creating cancellation or unwanted low-frequency behavior through the new speakers and amplifiers.\u003c\/p\u003e\u003ch3\u003eUse It Only Where the Vehicle Actually Has the Supported ANC Module\u003c\/h3\u003e\u003cp\u003eThis harness is application-specific. A Chrysler, Dodge, Jeep or RAM badge does not mean the vehicle automatically needs ANC-CH01. ANC equipment varies by model, year, trim and factory audio package.\u003c\/p\u003e\u003cp\u003eSupported applications include specified Pacifica, Cherokee, Grand Cherokee and later RAM truck configurations. The vehicle must have the compatible stand-alone ANC module and match a supported ANC-CH01 application.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e ANC-CH01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Active Noise Cancellation bypass harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select PAC-listed Chrysler, Dodge, Jeep and RAM vehicles with a compatible stand-alone ANC module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Factory-style plug-and-play connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio function:\u003c\/strong\u003e Bypasses supported ANC audio path for aftermarket amplifier integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle data:\u003c\/strong\u003e Keeps the ANC module connected to the vehicle data bus for diagnostic health\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory wiring:\u003c\/strong\u003e No cutting or permanent modification required\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHarness only.\u003c\/strong\u003e Amplifier, DSP, line-output converter and other integration equipment are sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"ANC-CH01 — Chrysler \/ Jeep \/ RAM ANC Bypass Harness","offer_id":51706892746985,"sku":"ANC-CH01","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-anc-ch01.jpg?v=1787423327"},{"product_id":"pac-apa-tos1-toslink-fiber-optic-output-amppro-accessory","title":"PAC AmpPRO TOSLINK Fiber-Optic Output — APA-TOS1","description":"\u003ch2\u003ePAC APA-TOS1 TOSLINK Fiber-Optic Output for AmpPRO\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIf the DSP or amplifier already accepts optical, there is no reason to leave a compatible AmpPRO on analog RCA just because that is the connection everyone is used to seeing.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAPA-TOS1 adds a variable TOSLINK fiber-optic output to supported PAC AmpPRO interfaces. The AmpPRO still handles the vehicle integration and volume behavior; APA-TOS1 changes the handoff to the downstream DSP or amplifier so the signal can travel over optical instead of an analog RCA run.\u003c\/p\u003e\u003ch3\u003eWhere the Optical Path Makes Sense\u003c\/h3\u003e\u003cp\u003eIn a DSP-based system, optical can simplify the signal path between the factory-integration interface and the processor. It also avoids the induced noise, ground interaction and electrical interference that can affect analog interconnects in a vehicle.\u003c\/p\u003e\u003cp\u003eOn PAC’s analog-based AP4 platforms, the AmpPRO converts the supported audio to digital and APA-TOS1 provides a \u003cstrong\u003e48 kHz \/ 24-bit\u003c\/strong\u003e TOSLINK output. That gives a compatible DSP a straightforward digital input without adding another external converter.\u003c\/p\u003e\u003ch3\u003eDo Not Buy It Twice\u003c\/h3\u003e\u003cp\u003eSome newer AmpPRO interfaces already come with the optical-output hardware as part of the package. Digital-bus products such as AP4-FD31, AP4-FD32, AP4-GM61, AP4-GM71 and AP4-GM81 include the APA-TOS1\/TOSLINK path.\u003c\/p\u003e\u003cp\u003eAPA-TOS1 makes sense as a separate accessory when the selected compatible AmpPRO does \u003cem\u003enot\u003c\/em\u003e already include optical and the downstream equipment can actually use TOSLINK. If the amplifier or DSP only accepts analog RCA, there is no benefit in adding fiber just for the sake of having it.\u003c\/p\u003e\u003ch3\u003eThe Cable Is Separate\u003c\/h3\u003e\u003cp\u003eThe module installs into the supported AmpPRO interface and works with standard TOSLINK optical cables. The optical cable itself is not included, so cable length is chosen around the actual DSP\/amplifier location rather than bundled arbitrarily with the interface.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e APA-TOS1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e PAC AmpPRO TOSLINK fiber-optic audio output accessory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Compatible PAC AmpPRO interfaces that support the APA-TOS1 accessory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Variable TOSLINK digital audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog-based AP4 digital output:\u003c\/strong\u003e 48 kHz \/ 24-bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDownstream compatibility:\u003c\/strong\u003e TOSLINK-equipped DSPs and amplifiers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable compatibility:\u003c\/strong\u003e Standard TOSLINK optical cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise benefit:\u003c\/strong\u003e Optical connection is not susceptible to the same induced electrical noise path as analog RCA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical cable:\u003c\/strong\u003e Not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAccessory only.\u003c\/strong\u003e AmpPRO interface, TOSLINK cable, DSP and amplifier are sold separately unless the selected AmpPRO already includes the optical-output hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/p\u003e","brand":"PAC","offers":[{"title":"APA-TOS1 — TOSLINK Fiber-Optic Output Accessory","offer_id":51706893664489,"sku":"APA-TOS1","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-apa-tos1.jpg?v=1787423362"},{"product_id":"pac-ch1a-rsx-radiopro-advanced-chrysler-dodge-jeep-ram-radio-replacement-interface","title":"PAC RadioPRO Advanced — Chrysler \/ Dodge \/ Jeep \/ RAM Radio Replacement — CH1A-RSX","description":"\u003ch2\u003ePAC CH1A-RSX RadioPRO Advanced\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCH1A-RSX is for supported Chrysler, Dodge, Jeep and RAM vehicles where replacing the factory radio means more than matching power and speaker wires.\u003c\/strong\u003e The vehicle uses CAN data for factory controls and retained features, so the radio replacement needs an interface that keeps the supported vehicle functions talking after the OEM radio comes out.\u003c\/p\u003e\u003cp\u003eCH1A-RSX is a radio installation adapter for select Chrysler\/Dodge\/Jeep\/RAM CAN-bus vehicles. It supports factory steering-wheel controls and supported factory amplified systems. Exact retained features and companion parts vary by vehicle.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse CH1A-RSX only when the exact vehicle, factory radio and audio architecture support this interface. Vehicle generation, premium amplifier, camera\/RSE equipment and Uconnect architecture can change the required path.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e CH1A-RSX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e CAN-bus radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select Chrysler, Dodge, Jeep and RAM vehicles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported functions:\u003c\/strong\u003e Application-dependent steering-wheel-control and factory-amplifier retention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware:\u003c\/strong\u003e Field-updateable where supported by PAC\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e application-specific limitations can include some premium-amplified systems without aftermarket-radio fader control and some vehicles requiring additional camera\/RSE retention hardware. Exact vehicle configuration must match before ordering.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"CH1A-RSX — Chrysler\/Dodge\/Jeep\/RAM CAN-Bus Radio Interface","offer_id":51789115785449,"sku":"CH1A-RSX","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-ch1a-rsx.jpg?v=1788366053"},{"product_id":"pac-gm1a-rs-radiopro-advanced-gm-radio-replacement-interface","title":"PAC RadioPRO Advanced — GM Chime \/ Amplifier \/ Steering-Wheel Control Retention — GM1A-RS","description":"\u003ch2\u003ePAC GM1A-RS RadioPRO Advanced\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGM1A-RS is for supported General Motors radio replacements where the factory radio is tied into vehicle chimes, steering-wheel controls and a factory amplifier.\u003c\/strong\u003e Instead of bypassing those systems blindly, this interface keeps the supported factory functions in the new-radio installation path.\u003c\/p\u003e\u003cp\u003eGM1A-RS retains chimes, the supported factory amplifier and steering-wheel controls. Exact application, factory-radio architecture and required companion adapters still depend on the vehicle.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse GM1A-RS only when the exact vehicle, factory radio and audio architecture support this interface. It is not interchangeable with GM1A-RST, GM3A-RSTX or GM6A-RST: OnStar, GM LAN generation, connector architecture, Bose equipment and other retained features change the correct interface.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GM1A-RS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e GM radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetained functions:\u003c\/strong\u003e Chimes, supported factory amplifier and steering-wheel controls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select General Motors applications; exact OEM radio\/audio\/network configuration must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e do not choose this part from GM make\/year alone. Factory radio, Bose\/non-Bose system, OnStar requirement and data-bus generation determine the correct path.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"GM1A-RS — GM Chime\/Amp\/SWC Retention Interface","offer_id":51789117685993,"sku":"GM1A-RS","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-gm1a-rs.png?v=1788366061"},{"product_id":"pac-gm1a-rst-radiopro-advanced-gm-radio-replacement-interface-with-onstar-retention","title":"PAC RadioPRO Advanced — GM Amplifier \/ Steering-Wheel Control \/ OnStar Retention — GM1A-RST","description":"\u003ch2\u003ePAC GM1A-RST RadioPRO Advanced\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGM1A-RST is the GM radio-replacement path for supported vehicles where chimes, steering-wheel controls, the factory amplifier and OnStar all need to stay in the system after the factory radio is removed.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThat OnStar retention is the important distinction from GM1A-RS. The two should not be treated as price-step variants; the vehicle’s factory equipment decides which architecture belongs in the quote.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse GM1A-RST only when the exact vehicle, factory radio and audio architecture support this interface. Bose\/non-Bose audio, OnStar, connector\/data-bus generation and required antenna\/camera\/USB adapters can change the required path.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GM1A-RST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e GM radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetained functions:\u003c\/strong\u003e Chimes, supported factory amplifier, steering-wheel controls and OnStar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select General Motors applications; exact OEM radio\/audio\/network configuration must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e this is not interchangeable with GM1A-RS, GM3A-RSTX or GM6A-RST. Exact OEM radio\/audio\/network configuration determines the correct interface.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"GM1A-RST — GM Amp\/SWC\/OnStar Retention Interface","offer_id":51789118603497,"sku":"GM1A-RST","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-gm1a-rst.jpg?v=1788366067"},{"product_id":"pac-gm3a-rstx-radiopro-advanced-gm-lan-29-bit-radio-replacement-interface","title":"PAC RadioPRO Advanced — GM LAN 29-Bit \/ OnStar Radio Replacement — GM3A-RSTX","description":"\u003ch2\u003ePAC GM3A-RSTX RadioPRO Advanced\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGM3A-RSTX is for supported General Motors radio-replacement applications using the GM LAN 29-bit data bus and the specific 14-pin\/16-pin harness architecture PAC designed this interface around.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is not a generic GM interface. The network generation and connector set are part of the fitment decision, along with OnStar, factory amplification and the original radio configuration.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse GM3A-RSTX only when the exact vehicle, factory radio and network architecture support this interface. Do not substitute GM1A-RS\/RST or GM6A-RST simply because the vehicle is GM or has OnStar.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GM3A-RSTX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e GM radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork:\u003c\/strong\u003e GM LAN 29-bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness architecture:\u003c\/strong\u003e 14-pin and 16-pin vehicle harnesses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnStar:\u003c\/strong\u003e Supported on listed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select General Motors applications; exact OEM radio\/audio\/network configuration must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e the exact vehicle, factory radio\/audio package, OnStar requirement and network\/connector architecture must match this interface.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"GM3A-RSTX — GM LAN 29-Bit\/OnStar Radio Interface","offer_id":51789119160553,"sku":"GM3A-RSTX","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-gm3a-rstx.png?v=1788366078"},{"product_id":"pac-gm6a-rst-radiopro-advanced-gm-radio-replacement-interface-with-onstar-bose-retention","title":"PAC RadioPRO Advanced — GM Bose \/ OnStar \/ Steering-Wheel Control Retention — GM6A-RST","description":"\u003ch2\u003ePAC GM6A-RST RadioPRO Advanced\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGM6A-RST is for supported GM radio replacements where the vehicle’s OnStar system, Bose factory amplifier, steering-wheel controls and navigation outputs all need to remain part of the installation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is a different integration path from the simpler GM1A and GM3A interfaces. The Bose amplifier and OnStar retention are part of the architecture, not optional add-ons that can be assumed from year alone.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse GM6A-RST only when the exact vehicle, OEM radio, Bose system, OnStar and connector\/data-bus architecture support this interface.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GM6A-RST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e GM radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetained functions:\u003c\/strong\u003e OnStar, Bose factory amplifier and pre-programmed steering-wheel controls on supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Navigation outputs on supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select General Motors applications; exact OEM radio\/audio\/network configuration must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Bose\/non-Bose, OnStar and OEM radio\/network differences determine the correct interface. Do not use GM6A-RST as a generic GM solution.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"GM6A-RST — GM Bose\/OnStar\/SWC Retention Interface","offer_id":51789119848681,"sku":"GM6A-RST","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-gm6a-rst.jpg?v=1788366133"},{"product_id":"pac-rp4-ch21-radiopro4-chrysler-dodge-jeep-ram-radio-replacement-interface","title":"PAC RadioPRO4 — Chrysler \/ Dodge \/ Jeep \/ RAM Radio Replacement — RP4-CH21","description":"\u003ch2\u003ePAC RP4-CH21 RadioPRO4\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRP4-CH21 is for supported Chrysler-family vehicles where removing the factory radio would otherwise take factory controls and data-driven functions with it.\u003c\/strong\u003e PAC’s RadioPRO4 interface handles the vehicle data needed for the aftermarket-radio installation and retains supported steering-wheel controls and factory amplification.\u003c\/p\u003e\u003cp\u003eThe important buying decision is the exact vehicle\/radio architecture. RP4-CH21 is not interchangeable with CH1A-RSX or newer generation-specific interfaces just because the vehicle is Chrysler, Dodge, Jeep or RAM.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse RP4-CH21 only when the exact vehicle, factory radio and audio architecture support this interface. Supported applications can retain steering-wheel controls, factory amplification, backup camera and data-driven vehicle functions, with application-specific limitations.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RP4-CH21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Chrysler-family CAN-bus radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported retention:\u003c\/strong\u003e Application-dependent steering-wheel controls, factory amplifier, backup camera and vehicle data functions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select Chrysler\/Dodge\/Jeep\/RAM applications; exact factory radio\/audio architecture must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e premium amplified systems can have functional limitations such as loss of aftermarket-radio fader control. Exact factory radio\/audio package and required companion adapters must match the installation.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"RP4-CH21 — Chrysler\/Dodge\/Jeep\/RAM RadioPRO4 Interface","offer_id":51789120897257,"sku":"RP4-CH21","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-rp4-ch21.jpg?v=1788366091"},{"product_id":"pac-gm1a-r-radiopro-advanced-gm-radio-replacement-interface","title":"PAC RadioPRO Advanced — GM Chime \/ Amplifier Retention — GM1A-R","description":"\u003ch2\u003ePAC GM1A-R RadioPRO Advanced\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGM1A-R is for supported GM radio-replacement jobs where the factory chimes and amplifier need to stay in the system, but steering-wheel-control retention is handled through an optional compatible interface rather than built into this model.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThat makes GM1A-R a different architecture from GM1A-RS and GM1A-RST. Do not choose between them by price alone; the vehicle’s retained-feature requirements decide the correct part.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse GM1A-R only when the exact vehicle, factory radio and audio architecture support this interface. Bose\/non-Bose configuration, OnStar requirements, steering-wheel-control strategy and data-bus generation can change the required path.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GM1A-R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e RadioPRO Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e GM radio replacement interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetained functions:\u003c\/strong\u003e Chimes and supported factory amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteering-wheel controls:\u003c\/strong\u003e Connection provided for an optional compatible SWC retention interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select General Motors applications; exact OEM radio\/audio\/network configuration must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e this is not interchangeable with GM1A-RS\/RST or later GM interfaces. Exact OEM radio\/audio\/network configuration is required before quoting.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"GM1A-R — GM Chime\/Amp Retention Radio Interface","offer_id":51789133349097,"sku":"GM1A-R","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-gm1a-r.png?v=1788366192"},{"product_id":"pac-srk-gm14hx-silverado-sierra-heigh10-horizon10-radio-installation-integration-kit","title":"PAC Silverado \/ Sierra HEIGH10 \/ HORIZON10 Installation Kit — SRK-GM14HX","description":"\u003ch2\u003ePAC SRK-GM14HX Silverado\/Sierra Radio Installation Kit\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSRK-GM14HX is the complete PAC integration path for putting a Stinger HEIGH10 or HORIZON10 into the supported K2XX-era Silverado\/Sierra trucks without turning the radio swap into a pile of separate retention modules.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePAC designed the kit for 2014–2018 Silverado\/Sierra 1500 and 2015–2019 Silverado\/Sierra 2500\/3500 trucks. It supports Bose and non-Bose systems through the included GM6A-SRK integration module and retains supported factory functions including warning chimes, OnStar, steering-wheel controls, parking-assist functions and the factory reverse camera.\u003c\/p\u003e\u003ch3\u003eWhat the Kit Solves\u003c\/h3\u003e\u003cp\u003eThe factory radio is tied into vehicle data, chimes, camera and convenience systems. SRK-GM14HX packages the vehicle-specific plastics, integration module, plug-and-play harnessing and antenna adapters around the Stinger 10-inch radio platform so those dependencies are handled as one installation system.\u003c\/p\u003e\u003ch3\u003eFitment Boundary\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eVehicle application:\u003c\/strong\u003e Chevrolet Silverado 1500 2014–2018; GMC Sierra 1500 2014–2018; Chevrolet Silverado 2500\/3500 2015–2019; GMC Sierra 2500\/3500 2015–2019. Exact factory equipment must match the kit, particularly external CD\/DVD drive handling in Bose-equipped vehicles.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SRK-GM14HX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Radio installation and OEM-integration kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadio platform:\u003c\/strong\u003e Stinger HEIGH10 \/ HORIZON10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory audio:\u003c\/strong\u003e Bose and non-Bose supported on listed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded integration:\u003c\/strong\u003e GM6A-SRK RadioPRO module, vehicle-specific radio panels, external chime speaker, plug-and-play harnesses, AM\/FM and SiriusXM antenna adapters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetained functions:\u003c\/strong\u003e Supported warning chimes, OnStar, steering-wheel controls, front\/rear parking assist and factory reverse camera\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e SiriusXM requires the appropriate tuner\/module. Some Bose applications require audio-loop jumper handling; the truck’s original equipment must match the planned installation.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"SRK-GM14HX — Silverado\/Sierra HEIGH10\/HORIZON10 Kit","offer_id":51789148848361,"sku":"SRK-GM14HX","price":569.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-srk-gm14hx.jpg?v=1788366335"},{"product_id":"pac-os-5-gm-29-bit-lan-radio-replacement-interface-with-onstar-bose-retention","title":"PAC GM 29-Bit LAN Radio Replacement — OnStar \/ Bose Retention — OS-5","description":"\u003ch2\u003ePAC OS-5 GM 29-Bit LAN Radio Replacement Interface\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOS-5 is for supported older GM 29-bit LAN vehicles where replacing the factory radio still needs the vehicle’s factory options to work.\u003c\/strong\u003e It supports listed vehicles with or without Bose, including applications that retain OnStar, steering-wheel controls, chimes and factory amplification.\u003c\/p\u003e\u003cp\u003eThis is a network-specific interface. It is not interchangeable with later GM RadioPRO Advanced or AmpPRO products simply because the vehicle is Chevrolet, GMC, Buick or Cadillac.\u003c\/p\u003e\u003ch3\u003eWhere It Fits\u003c\/h3\u003e\u003cp\u003eUse OS-5 only when the exact vehicle, factory radio and network architecture use the 29-bit LAN OS-5 path. Supported applications include older Chevrolet\/GMC truck and SUV platforms; exact model\/year and factory equipment must match.\u003c\/p\u003e\u003ch2\u003eManufacturer Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e OS-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 29-bit LAN GM radio replacement \/ feature-retention interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory audio:\u003c\/strong\u003e Supported applications with or without Bose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose:\u003c\/strong\u003e Retain supported factory options during aftermarket-radio replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle coverage:\u003c\/strong\u003e Select 29-bit LAN General Motors applications; exact factory radio\/audio\/network configuration must be compatible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e exact year\/model, factory radio, Bose\/non-Bose configuration, OnStar and required antenna\/camera\/SWC companion parts must match the installation.\u003c\/p\u003e","brand":"PAC","offers":[{"title":"OS-5 — GM 29-Bit LAN OnStar\/Bose Retention Interface","offer_id":51789149798633,"sku":"OS-5","price":429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/pac-os-5-radio-replacement-interface.jpg?v=1788649770"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/collections\/pac-ap4-ch21_c2fb07c5-d7af-4ebc-beb3-f927befed742.jpg?v=1787247817","url":"https:\/\/smscaraudio.com\/collections\/pac-oem-integration-amppro-locpro.oembed","provider":"SMS Car Audio","version":"1.0","type":"link"}