IDATALINK HRN-RR-GM4 +ADS-MRR MAESTRO GM4 / GM VEHICLES HARNESS W/CHIME FOR Two 10-pin to 22-

Two 10-pin to 22-

· Mounting bracket

B (7 times) - starts flashing on and off slow then speeds up

you would have to cut the OE radio plug and manually test each wire to connect to your after-market receiver

GM Data Interface 2014-Up

IDATALINK HRN-RR-GM4 +ADS-MRR MAESTRO GM4 / GM VEHICLES HARNESS W/CHIME FOR Two 10-pin to 22-IDATALINK HRN RR GM4 Keep your GM factory features iDatalink's HRN RR GM4 wiring adapter allows you to connect an iDatalink ready car stereo in select 2016 up Chevrolet and GMC trucks with 7" screens, working in conjunction with iDatalink's Maestro ADS MRR module. Once connected, you'll retain the use of your steering wheel audio controls in these vehicles, as well as your warning chimes and backup camera. You'll still retain OnStar service and