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iDatalink HRN-HRR-TO3 wiring harness with ADS-MRR module, black connectors and cables

iDatalink

iDatalink HRN-HRR-TO3 Radio Replacement Harness with ADS-MRR Module

SKU CH-2PBB-C14J2

Radio replacement harness for select 2018+ Toyota vehicles retains steering-wheel controls, factory amplifier, backup camera and vehicle settings when paired with a Maestro ADS-MRR module

  • Product typeHarness
  • Key featuresRequires Maestro ADS-MRR or ADS-MRR2 module for full functio
  • Retains steering wheel audio controls without rewiring
  • Keeps factory amplifier working with any aftermarket stereo
  • Preserves vehicle personalization menu on new head unit
  • Maintains backup camera and rear seat entertainment functions
  • Displays performance data on touchscreen with compatible receivers

Toyota harness purpose

The iDatalink HRN-HRR-TO3 harness enables installation of an aftermarket stereo in select 2018 and newer Toyota vehicles. It works with Maestro ADS-MRR or ADS-MRR2 modules to preserve factory features during the upgrade. This kit suits owners replacing the original head unit while keeping integrated vehicle systems functional.

Retained factory functions

The harness keeps steering wheel audio controls operational and retains the factory amplifier with any compatible stereo. It preserves the vehicle settings personalization menu and maintains backup camera functionality. Support for rear seat entertainment systems and display of select factory features on the touchscreen are also provided.

Upgrade from factory radio

This harness replaces the factory radio connection without cutting or splicing wires, using optional head unit adapters for major brands. The jump is worth it when adding a touchscreen receiver that can display performance data through iDatalink-ready compatibility. It is not for vehicles outside the listed Toyota range or for installations that do not use a Maestro module.

How it compares

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

Price $222.99
Pricier than about 58% of the 3,253 comparable items (median $212.99).

Specifications

Product
Brand nameiDatalink
Product typeHarness

Questions about this item

Which Maestro module does the HRN-HRR-TO3 harness require for full functionality?

The harness requires a Maestro ADS-MRR or ADS-MRR2 module to enable all supported vehicle features.

What Toyota model years does this installation harness support?

It is designed for select Toyota vehicles from 2018 and newer.

How is the HRN-HRR-TO3 harness installed without cutting factory wiring?

The harness plugs directly into the vehicle's factory connectors and the aftermarket radio via optional brand-specific adapters, eliminating the need for splicing.

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