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A compact black rectangular module with a wiring harness adapter attached

Maestro Luggage

Maestro ADS-MRR Radio Replacement Interface With HRN-RR-FO2 Adapter

SKU CH-3CW2-S3AJB

Enables aftermarket stereo installation in select 2006-up vehicles while retaining steering wheel controls, factory amplifiers, and features like OnStar or SYNC with compatible Kenwood, Alpine.

  • Product typeAccessory
  • Key featuresAllows installation of a new car stereo in select 2006-up
  • Retain steering wheel audio controls and factory amps in select 2006-up vehicles
  • Install a new car stereo across Ford, GM, Chrysler, Toyota, Honda, Fiat, Subaru and Volkswagen/Audi models
  • Works with a vehicle-specific harness to integrate all stereo connections
  • Keep factory convenience features such as OnStar, SYNC and Uconnect with select Kenwood, Alpine, Pioneer and JVC touchscreen receivers
  • Display engine performance data on the touchscreen with select Kenwood, JVC, Pioneer, Sony and Alpine multimedia receivers

Radio Replacement Interface Kit

The Maestro ADS-MRR module lets you fit a new stereo in select 2006-up Ford, Lincoln, Mercury, GM, Chrysler, Dodge, Jeep, RAM, Toyota, Scion, Honda, Acura, Fiat, Subaru, Volkswagen and Audi vehicles while keeping the original steering-wheel audio controls and any factory amplifier. It is designed for installers and owners who want a modern head unit without losing those integrated vehicle functions.

Bundled Ford-Specific Harness

The included HRN-RR-FO2 T-harness provides a plug-and-play connection for select 2006-14 Ford, Lincoln, Mazda and Mercury models, removing the need to cut or splice the factory wiring during installation. This adapter works with the ADS-MRR module to integrate all stereo connections and retain the factory amplifier where fitted, simplifying the swap to an aftermarket receiver.

Compact Module Build

The ADS-MRR unit measures 4-1/8"W x 3/4"H x 2-7/8"D, allowing it to tuck behind the dash in tight cavities. Its connectors support the required vehicle-specific harness (sold separately) to maintain features such as OnStar, SYNC and Uconnect with select Kenwood, Alpine, Pioneer, JVC and Sony touchscreen receivers, and to display engine performance data on compatible multimedia screens.

How it compares

Measured against everything we stock in Car Stereos & Multimedia Receivers, at today’s prices. Recalculated every night.

Price $168.99
Cheaper than about 62% of the 3,253 comparable items (median $212.99).

Specifications

Product
Brand nameMaestro
Product typeAccessory

Questions about this item

Will the Maestro ADS-MRR module need firmware updates to keep working with my receiver?

The interface is programmed for the specific vehicle and radio combination at installation; no ongoing firmware maintenance is required from the user.

What stops the HRN-RR-FO2 harness from working continuously in a 2006 Ford?

The harness is a passive wiring adapter, so the first limit under sustained use is the vehicle's own circuit protection and connector integrity.

Does the ADS-MRR generate noticeable heat or noise when the stereo runs all day?

The module has no moving parts and draws minimal current, so it adds no audible noise or measurable heat to the dashboard.

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