PAC RP4-CH21 RadioPRO4 radio replacement interface
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PAC RP4-CH21 RadioPRO4 radio replacement interface

PAC RP4-CH21 RadioPRO4 Chrysler/Dodge/Jeep/RAM Radio Replacement Interface

PACSKU: RP4-CH21
Authorized Dealer In-Store Only
Collections:Car Audio DSP, OEM Integration & Signal ControlJeep Wrangler & Gladiator Audio, Lighting & AccessoriesPAC OEM Integration, AmpPRO & LocPRO

Select the exact model required for the vehicle. Pricing remains protected for in-store quoting.

Authorized dealer · In-store only

In-Store Only — We’ll Help You Get the Right One

This product is not available for online purchase or shipping. Call or text us and we’ll make sure you’re getting the right one—whether you’re picking it up over the counter or having SMS install it for you. All purchases are completed in-store at SMS Car Audio.

Call 504-289-8127 Text 504-289-8127 Send Project Details
RADIO / OEM FUNCTION FIT

Where this fits in the build

The source unit has to fit more than the dash opening. Steering-wheel controls, factory cameras, amplified audio, chimes, USB, vehicle settings and data integration can change the correct installation path.

Plan aroundConfirm dash fitment and the factory features that must remain.
Match itMatch the radio to phone, camera, audio and interface requirements.
Finish itUse the correct vehicle interface instead of sacrificing OEM functions unnecessarily.
CarPlay & Radio Installation Ask SMS About This Product

Description

PAC RP4-CH21 RadioPRO4

RP4-CH21 is for supported Chrysler-family vehicles where removing the factory radio would otherwise take factory controls and data-driven functions with it. PAC’s RadioPRO4 interface handles the vehicle data needed for the aftermarket-radio installation and retains supported steering-wheel controls and factory amplification.

The 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.

Where It Fits

Use RP4-CH21 only when current PAC application data calls for this exact part. PAC documentation for supported applications includes retained steering-wheel controls, factory amplifier, backup camera and data-driven vehicle functions, with application-specific limitations.

Manufacturer Specifications

  • Manufacturer: PAC
  • Model: RP4-CH21
  • Product family: RadioPRO4
  • Type: Chrysler-family CAN-bus radio replacement interface
  • Current PAC price: $379.00
  • Supported retention: Application-dependent steering-wheel controls, factory amplifier, backup camera and vehicle data functions
  • Vehicle coverage: Select Chrysler/Dodge/Jeep/RAM applications; exact current PAC application required

Important: premium amplified systems can have functional limitations such as loss of aftermarket-radio fader control. Verify the exact factory radio/audio package and all required companion adapters before quoting.