@sapphire @EdBoatConnoisseur @kf01 @basadeskaiser @Mutsu_a125 @sickburnbro they should be beaten savagely until they learn to use mechanical instruments and simple electronics that can be diagnosed and repaired by any jackass with a multimeter
and by allah the stereo is to have no communication with the ECU. want to know if the car's in reverse to activate the backup camera? the +12V from the R light on the dash is all you get.