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Black automotive wiring harness with multiple coloured connectors and a rectangular plug, new condition

iDatalink

iDatalink HRN-HRR-TO3 Radio Replacement Harness Kit 2018+ Toyota

SKU CH-TTE0-M055J

Radio replacement harness kit for 2018+ Toyota vehicles retains steering wheel audio controls and factory amplifier

  • Product typeRadio Replacement Harness Kits
  • Key featuresRetains the use of your steering wheel audio controls and fa
  • Retains steering wheel audio controls and factory amp
  • Supplies parking brake, reverse, and speed sensor connections
  • Enables new iDatalink-ready stereo installation in 2018+ Toyota models
  • Preserves vehicle settings, backup camera, and rear seat entertainment
  • Works with Head-unit Direct harnesses, eliminating splicing

Vehicle Compatibility

This harness kit is designed for 2018 and newer Toyota vehicles. It enables the installation of an iDatalink-ready aftermarket car stereo while retaining factory features. The kit works with the required Maestro ADS-MRR or ADS-MRR2 module to integrate with the vehicle's data systems.

Feature Retention & Limitations

The kit retains steering wheel audio controls, the factory amplifier, and the vehicle settings personalisation menu. It also maintains the backup camera and rear seat entertainment system. Buyers who do not have a compatible iDatalink-ready receiver or the necessary Maestro module cannot use this harness.

Installation & Common Issues

The radio side uses a universal connector that works with Maestro Head Unit adapters for a plug-and-play installation, removing the need for splicing wires. It also supplies parking brake, reverse, and speed sensor connections for touchscreen radios. Installation requires the separate Maestro module and a compatible receiver to function correctly.

How it compares

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

Price $59.99
Cheaper than about 90% of the 3,253 comparable items (median $212.99).

Specifications

Product
Brand nameIdatalink
Product typeRadio Replacement Harness Kits

Questions about this item

What iDatalink module is required alongside this harness kit for a 2018 Toyota installation?

You also need the Maestro ADS-MRR or ADS-MRR2 module to complete the installation in select Toyota vehicles.

Will this harness keep my factory amplifier and steering wheel audio controls active?

Yes, the kit retains both the factory amplifier and steering wheel audio controls when replacing the radio.

How can I verify the harness is supplying the correct signals to my new touchscreen radio?

Confirm that the parking brake, reverse, and speed sensor connections are functioning on the touchscreen display.

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