Remote CD Player (if equipped)
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
The remote CD player (GFM) is powered at all times and uses the BCM ignition status message to control the on/off mode (including the accessory delay function). The touchscreen input to the APIM controls the remote CD player via CAN messages.
The remote CD player (GFM) outputs hard-wired stereo signals to the ACM CD inputs. The ACM processes the signals and sends them to the DSP for output to the speakers.