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A small black electronic module and a wiring harness with multiple connectors

Maestro Luggage

Maestro ADS-MRR2 & HRN-RR-TO2 Interface Kit for 2012+ Toyota GPS Navigation

SKU CH-J3K5-WEBPP

Allows installation of a new car stereo in select 2012 and up Toyota vehicles while retaining factory steering wheel audio controls and amplifier

  • TypeInstallation Parts
  • Retain factory steering wheel audio controls with the ADS-MRR2 module
  • Keep the factory amplifier signal when upgrading the stereo
  • Install an aftermarket radio in select 2012+ Toyota models using the HRN-RR-TO2 adapter
  • Compatible with over 3000 vehicles from 2003 onward across multiple brands
  • Programme the module via Bluetooth from an iOS or Android device

Product Purpose

This Maestro interface kit combines the ADS-MRR2 module with the HRN-RR-TO2 adapter to let you install an aftermarket stereo in select 2012 and newer Toyota vehicles. It retains factory steering wheel audio controls and the original amplifier when present.

Compatibility Fit

The kit suits owners of compatible 2012-plus Toyotas who want a new head unit while keeping wheel controls and amp integration. It does not suit drivers of pre-2012 Toyotas, non-Toyota models, or anyone whose vehicle requires a different harness not included here.

Deciding Specification

The HRN-RR-TO2 harness is engineered specifically for select 2012 and up Toyota applications. Confirm your exact model and year against the manufacturer list before purchasing, as fitment is limited to those vehicles.

Highlights

  • Retain factory steering wheel audio controls with the ADS-MRR2 module
  • Keep the factory amplifier signal when upgrading the stereo
  • Install an aftermarket radio in select 2012+ Toyota models using the HRN-RR-TO2 adapter
  • Compatible with over 3000 vehicles from 2003 onward across multiple brands
  • Programme the module via Bluetooth from an iOS or Android device

Specifications

BrandMaestro
TypeInstallation Parts

Questions about this item

Which vehicles does the ADS-MRR2 module support for steering-wheel control retention?

The ADS-MRR2 module supports select 2006-up vehicles from Chrysler, Fiat, Ford, GM, Honda/Acura, Subaru, Toyota/Scion and Volkswagen, covering over 3000 applications from 2003 onward.

What physical adapter is required to install the kit in a 2012+ Toyota?

The HRN-RR-TO2 wiring adapter plugs into the factory harness and connects to the ADS-MRR2 module, providing the vehicle-specific connections for select 2012-up Toyota models.

How is the ADS-MRR2 module programmed and what step is often missed?

The module is programmed via Bluetooth from an iOS or Android device using the iDatalink app; the step often missed is completing the vehicle-specific firmware flash before connecting the radio.

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