Rockford Fosgate HRN-AR-TO2 Amplifier Replacement Harness

The Rockford Fosgate HRN-AR-TO2 is a vehicle-specific amplifier replacement T-harness for select Toyota, Lexus, and Subaru vehicles with compatible factory amplified sound systems. It provides the factory-side connection needed when integrating a Maestro AR amplifier replacement module into an upgraded audio system. This harness is intended for drivers who want to replace the factory amplifier while preserving supported factory audio functions.

Designed for use with a Maestro AR module, the HRN-AR-TO2 helps route the vehicle’s factory audio and data connections to the amplifier-replacement interface. The harness itself does not add power, processing, or amplification; those functions come from the separately purchased Maestro AR module and compatible aftermarket equipment. Its role is to provide a clean integration path between the factory system and the upgrade components.

Because it is tailored to supported premium factory audio applications, this harness supports retention of fader control, tone control, and other applicable factory functions. It is a practical choice for retaining the familiar operation of the original radio while improving the amplification stage behind it. Exact retained features depend on the vehicle, factory audio package, and installed Maestro-compatible equipment.

The HRN-AR-TO2 uses a plug-in T-harness approach that helps preserve factory wiring integrity. By connecting at the factory amplifier location, it can reduce the need to cut or splice original vehicle wiring. This makes it well suited to system upgrades where a clean, serviceable installation is important.

Use this harness as part of a complete Maestro AR or compatible DSR1-based amplifier-replacement system, not as a standalone audio product. It is compatible with select Toyota, Lexus, and Subaru applications beginning with 2012 model-year vehicles, subject to detailed vehicle and factory-system fitment. Confirm the exact vehicle year, trim, radio, and amplified audio package before purchase.

Key Features

• Vehicle-Specific T-Harness: Connects compatible factory amplifier wiring to a Maestro AR integration system.
• Factory Amplifier Replacement: Supports an aftermarket amplifier upgrade path in select amplified vehicles.
• Maestro AR Integration: Required harness for supported installations using the ADS-MAR module.
• Factory Feature Retention: Helps retain supported fader, tone, and related audio controls.
• Plug-In Installation: Helps avoid cutting or splicing the original vehicle wiring.
• Select Vehicle Coverage: Designed for supported Toyota, Lexus, and Subaru premium audio systems.

Design & Installation

The HRN-AR-TO2 is a purpose-built wiring harness with factory-style connectors configured for specific amplifier-replacement applications. Its T-harness layout is designed to interface with compatible factory wiring at the original amplifier location. The black harness assembly is compact and intended to integrate within the vehicle’s existing audio-system architecture.

Install the harness only in a confirmed compatible vehicle with the required factory amplified audio package. A separately sold ADS-MAR Maestro AR module is required for the stated Maestro AR application; compatible DSR1-based systems may also use this harness where supported. Verify vehicle fitment and follow the module-specific programming and installation instructions before connecting aftermarket amplification.