Circuit/System Description
WARNING: This page is about a different car, the 2016 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
The media disc player is a separate component in the infotainment system. The media disc player receives power, ground and serial data from the vehicle harness.
Control information and digital audio output is communicated over the MOST bus. The media disc player also communicates on low speed GMLAN.
The media disc player is also the control module for the rear seat entertainment system, responsible for video output, infrared audio, screen controls and source selections for the system. All information to the video screens is communicated over the LVDS cables. One cable is connected to the front display, and a second cable is connected to both rear displays.