Rockford Fosgate HRN-AR-CH4 Amplifier Replacement T-Harness

The Rockford Fosgate HRN-AR-CH4 is a vehicle-specific amplifier replacement T-harness for select Chrysler-built vehicles with compatible factory amplified audio systems. It provides the connection path needed to replace the factory amplifier while retaining the factory radio. This makes it a practical integration component for an upgraded amplifier or digital signal processor installation.

This harness is intended for installers and vehicle owners building a Maestro-compatible amplifier replacement system. It connects at the factory amplifier wiring, helping preserve the vehicle-side wiring rather than requiring cutting into the original harness. Fitment depends on the exact vehicle, model year, factory audio package, and supported Maestro firmware.

The HRN-AR-CH4 is not an amplifier, processor, or speaker component, so it does not add power or alter sound on its own. Its role is to carry the necessary factory audio and vehicle-data connections to the compatible replacement interface and audio system. That integration supports a clean upgrade path while keeping the original radio in place.

When used in a supported application, the harness works with a Maestro AR amplifier replacement interface or compatible DSR1-based installation. The system can retain important factory functions such as fader, tone controls, radio-generated sounds, and applicable chimes. Available retained functions vary by vehicle and programmed application.

Its multi-connector layout is designed around factory amplifier replacement locations and supplied vehicle-side connectors. The included speaker/chime lead and two-pin harness support the required connections for supported installations. For installations that place the replacement interface away from the factory amplifier location, compatible Maestro extension harnesses may be used where applicable.

Key Features

• Vehicle-Specific T-Harness: Interfaces with select Chrysler-built factory amplifier wiring.
• Factory Amplifier Replacement: Supports replacement of the original factory amplifier.
• Maestro AR Compatibility: Works with a compatible Maestro AR replacement interface.
• DSR1 Integration: Designed for supported Rockford Fosgate DSR1 installations.
• Factory Wiring Retention: Helps avoid cutting or splicing factory wiring.
• Control Retention: Supports retained fader, tone, chime, and radio functions where applicable.

Design & Installation

The HRN-AR-CH4 uses application-specific factory-style connectors and organized harness sections to interface with the vehicle's original amplifier connectors. Its design is focused on preserving factory wiring integrity and creating an orderly connection point for a compatible replacement interface. The package includes a 16-inch T-harness, two 16-inch factory-amplifier harnesses, a 4-inch speaker/chime harness, and a 2-foot two-pin harness.

Verify the vehicle's year, model, factory audio system, amplifier presence, and Maestro compatibility before purchase or installation. Installation involves removing the factory amplifier, connecting the vehicle harnesses to the HRN-AR-CH4, configuring its two-pin connections as required by the vehicle guide, and connecting the compatible Maestro interface and aftermarket audio equipment. The Maestro module and compatible amplifier or processor are separate components, and professional installation is recommended.