PAC Radio Replacement Interface for Chrysler Dodge Jeep RAM (2004–2017) — Retains Chimes & Steering Wheel Controls

If you want to upgrade to an aftermarket head unit without losing important factory features, this PAC interface harness adapts the vehicle's CAN Bus and accessory wiring to the new radio. Designed for both amplified and non-amplified systems, the interface preserves data and many OEM alerts so the car’s behavior remains familiar after installation.

What factory functions does this interface preserve?

The PAC interface retains most in-cabin warnings and data-driven functions so you won’t lose audible chimes or seat memory prompts after installing a new radio. It keeps backup chimes, low fuel and door/hatch ajar alerts, plus several vehicle trigger outputs for a seamless experience.

• Maintains warning chimes including reverse/back-up tones
• Preserves memory seat prompts and low fuel/door ajar alerts
• Provides VSS (vehicle speed sensor), illumination, parking brake and reverse trigger outputs

How does it integrate steering wheel controls and accessory power?

This interface supplies a dedicated single-wire output for steering wheel control modules, simplifying integration with most aftermarket SWC adapters. It also generates a 12V accessory (RAP) output so the new radio can power on and off consistent with the vehicle’s accessory cycle.

• Single-wire steering wheel control output compatible with SWI-CAN or SWI-CAN2 modules
• Built-in buzzer handles audible prompts
• Generates a 12‑volt RAP accessory output for radio power management

Will it work with amplified audio systems and advanced safety features?

The interface supports both amplified and non-amplified factory setups and includes outputs for common vehicle triggers. Note that PAC’s harness supplies a break wire but does not retain the blind spot detection system—plan accordingly if your vehicle uses that feature.

• Compatible with amplified and non-amplified factory audio systems
• Supplies a break wire to manage factory amp connections
• Does not retain blind spot detection alerts or sensors

Which vehicles and modules are supported, and what data is kept?

The harness covers many Chrysler, Dodge, Jeep and RAM models from roughly 2004 through 2017 and ships with SWI-CAN or SWI-CAN2 steering wheel control modules for 2005–2011 Chrysler radio replacements. It retains vehicle data where possible so settings and chimes remain after the swap.

• Designed for select 2004–2017 Chrysler, Dodge, Jeep, RAM models
• Includes SWI-CAN or SWI-CAN2 modules for 2005–2011 Chrysler radios
• Retains stored vehicle data and most OEM chimes and alerts

Who is this for: installers and vehicle owners who want a reliable way to upgrade the factory radio while keeping critical OEM sounds, steering wheel control functionality and essential trigger outputs. If you plan to replace the head unit on supported Chrysler-family vehicles and need to preserve chimes, illumination, VSS and accessory power, this PAC interface offers a plug-friendly solution that minimizes wiring work and preserves the car’s original behavior. If blind spot detection retention is crucial for your vehicle, consider alternate solutions or additional modules because this harness does not preserve that system.