iDatalink MAESTRO ADS-MRR + HRN-RR-TO3 T-Harness for Select Toyota 2018 & UP

  iDatalink Maestro RR Interface Module Connect a new stereo and retain the steering wheel audio controls and factory amps in select 2006-up vehicles iDatalink's Maestro ADS-MRR module, along with the correct interface harness for your vehicle, allows you to install a new car stereo in select 2006-up Ford/Lincoln/Mercury, GM, Chrysler/Dodge/Jeep/RAM, Toyota/Scion, Honda/Acura, Fiat, Subaru, and Volkswagen/Audi vehicles while retaining your factory steering wheel audio controls and the use of your factory amplifier, if present. First, you connect the Maestro to your computer using the included USB cable, visit www.idatalink.com/maestro, and follow the instructions. Once the unit has been "flashed," it's ready to go. Next, you'll either solder or crimp the vehicle-specific Maestro harness (sold separately) to your new receiver's wiring, just like you would with any Crutchfield wiring harness or wiring adapter. Important Note: You will also need an additional Maestro vehicl