Power, Ground, Serial Data, Antenna, and Audio/Video Inputs (Trax)
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power, Ground, Serial Data, Antenna, and Audio/Video Inputs (Trax)