iDatalink's HRN-HRR-TO2 wiring adapter works in conjunction with iDatalink's Maestro ADS-MRR or ADS-MRR2 module, allowing you to connect a new car stereo in select 2012-19 Toyota-made vehicles, Once connected, you'll retain the use of your steering wheel audio controls and your factory amp in these vehicles.

The package includes connectors that plug in between the Maestro module and your factory radio's wiring plugs. You'll have to solder or splice together this harness's power/ground, illumination, speaker, and navigation output wires to the corresponding wires on your aftermarket receiver's wiring harness.

An iDatalink-ready car stereo takes full advantage of this harness

If you're buying a compatible iDatalink-ready car stereo, you'll enjoy the outstanding performance of your receiver, plus seamless touchscreen control over most of the factory features in select Toyota-built vehicles, including your backup camera and vehicle settings menu. You'll also appreciate the additional features added by the adapter, including the ability to view performance gauges and vehicle information on the screen with select iDatalink-ready receivers. This harness features an in-line head-unit connector harness, which will plug into their new "Head-unit direct" harnesses for select radio brands. If you're installing a radio that doesn't work with a "Head-unit direct" harness, you simply cut off the plug and connect the wires to the harness included with your new radio.