Audio Signals

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

Stereo signals contain left and right channel information, and are used for most audio signals.

A mono signal is used for the microphone input to the APIM . The mono signal is also used for the voice prompts, the TTS feature, ringtones, and any audio received through a connected mobile phone. These audio signals are output from the APIM to the ACM . The mono output from the APIM utilizes separate circuits from the stereo output.

A digital signal is used to transmit data from a media device connected through the USB port to the APIM . The APIM then converts the signal to analog and relays the signal to the receiving module, which varies by vehicle configuration.

A wireless signal is used to broadcast audio signals from a Bluetooth media device to the APIM , which converts the wireless audio signal to analog and relays it to the ACM .