{"product_id":"open-box-mb-quart-mbqj-stg4a-1-800w-stage-4-jeep-wrangler-jl-gladiator-jt-oem-audio-upgrade","title":"OPEN BOX — MB Quart MBQJ-STG4A-1 800W Stage 4 Jeep Wrangler JL \/ Gladiator JT OEM Audio Upgrade","description":"\u003ch2\u003eOPEN BOX — MB Quart MBQJ-STG4A-1 800W Stage 4 OEM-Radio Audio Upgrade\u003c\/h2\u003e\n\u003cp\u003eA factory-radio-compatible Jeep front-stage upgrade from MB Quart, engineered as a coordinated four-speaker, two-amplifier system for Wrangler JL and Gladiator JT. \u003cstrong\u003eThis is the OEM-source-unit model MBQJ-STG4A-1\u003c\/strong\u003e, not the different MBQJ-STG4AH-1 version for aftermarket radios.\u003c\/p\u003e\n\u003ch3\u003eManufacturer-Specified Stage 4 Kit\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo 3.5-inch upper-dash coaxial speakers\u003c\/li\u003e\n\u003cli\u003eTwo 6.5-inch front midbass drivers and application-specific lower-dash replacement enclosures\u003c\/li\u003e\n\u003cli\u003eTwo 400-watt two-channel Class-D amplifiers (800-watt system rating)\u003c\/li\u003e\n\u003cli\u003eOEM-source-unit integration, vehicle-specific wiring, amplifier mounting plate and installation hardware specified by MB Quart for this model\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Application\u003c\/h3\u003e\u003cp\u003eFor \u003cstrong\u003eJeep Wrangler JL 2018–current\u003c\/strong\u003e and \u003cstrong\u003eJeep Gladiator JT 2020–current\u003c\/strong\u003e using the \u003cstrong\u003efactory source unit\u003c\/strong\u003e. Confirm trim, OEM sound system, connector and model-year integration requirements. Manufacturer notes this kit requires a compatible rear speaker kit or soundbar; the JC2-169 rear pair and MBQJL-302 tailgate subwoofer are \u003cstrong\u003enot included\u003c\/strong\u003e in this separately priced Stage 4 offer.\u003c\/p\u003e\n\u003ch3\u003eOpen-Box Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCondition: OPEN BOX.\u003c\/strong\u003e One Stage 4 OEM-radio kit being separated from an open-box Stage 7 package. Exact cosmetic condition, interface parts, mounting hardware, harnesses and other loose accessories must be physically verified before sale. Equipment price excludes installation labor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer model:\u003c\/strong\u003e MBQJ-STG4A-1 | \u003cstrong\u003eMOPAR part:\u003c\/strong\u003e 68729812AA\u003c\/p\u003e\n\u003ch3\u003eRelated Open-Box MB Quart Components\u003c\/h3\u003e\u003cp\u003eThese separate equipment listings were split from an MB Quart Jeep audio package. Each is priced and sold independently; adding one item does not include the others. Confirm vehicle year, factory audio equipment, actual open-box accessories and fitment before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/open-box-mb-quart-mbqjl-302-12-inch-400w-jeep-wrangler-tailgate-subwoofer-system\"\u003eMB Quart MBQJL-302 — 12-inch tailgate subwoofer with 400W amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/open-box-mb-quart-jc2-169-jeep-wrangler-jl-gladiator-jt-6-9-rear-soundbar-speakers-pair\"\u003eMB Quart JC2-169 — rear 6×9 soundbar speaker pair\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":68017226547433,"sku":"MBQJ-STG4A-1","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/MBQJ-STG4A-1_1.jpg?v=1794663883","url":"https:\/\/smscaraudio.com\/products\/open-box-mb-quart-mbqj-stg4a-1-800w-stage-4-jeep-wrangler-jl-gladiator-jt-oem-audio-upgrade","provider":"SMS Car Audio","version":"1.0","type":"link"}