New Maestro ADS-MRR2 Interface Module and HRN-RR-GM4 Interface Harness For Select 2016+ GM Vehicles Fits 2016 and up GM iDatalink's Maestro ADS-MRR2 module, with an interface harness for your vehicle, allows you to install a new car stereo in over 3000 vehicles 2003 and up including: Chrysler, Fiat, Ford, General Motors, Honda/Acura, Subaru, Toyota/Scion, and Volkswagen vehicles. Maestro RR2 offers the same exclusive infotainment retention and exclusive screens as the Maestro RR while adding support for additional vehicles and enabling Bluetooth programming directly from your iOS and Android mobile device. Basic radio retention features are also available with non-iDatalink-compatible radios. iDatalink's HRN-RR-GM4 interface harness allows you to connect an iDatalink-ready car stereo in select 2016-up GM-made vehicles. iDatalink Maestro RR2 Interface Module: