Update: 8/7/20
Received new RR2 from Crutchfield today and proceeded to install, this time with the CAN lines military spliced with solder(they said t-tap was bad).....the same symptoms, radio will not automatically shut off when the car is shut off. Car info, gauges, TPMS etc do not work. When I look at the CAN STATUS page it shows an error: stufferr and count:9...
According to the below link the SU2 harness is now compatible with 2018-2020 cars...I don't believe it.
http://www.12voltdata.com/forum/view...18400&start=15