Hi guys,
RE: Road Top Carplay MMI unit installation with Aftermarket Front & Rear cameras.
335i e92 2012 with iDrive CIC 8.8 screen
Everything else works fine, but the unit appears to not be able to detect when the car is in reverse or PDC is on??
The unit can power the cameras, as I have tested this by providing 12v to the signal wire, but otherwise it appears not to be able to tell when the car is in reverse gear or when PDC is on!
So, I need to provide a signal wire, upto 12v, when the car is in reverse or when PDC button is pressed, where can I get this from? ideally from behind the head unit.
Just to note, I had a basic MMI system before which I'm replacing & this worked fine with the cameras.