Circuit/System Description
WARNING: This page is about a different car, the 2016 Chevrolet Trax and 2016 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
The radio controls are supplied battery voltage and ground . The radio controls operate radio functions through serial data messages. The radio controls communicate control requests to the info display module through LIN serial data. The info display module communicates these control requests to the radio through serial data.