Microphone Circuit between Microphone and Navigation Receiver Assembly [08/2018 - 08/2021]: Description

w/ Manual [SOS] Switch:

• The multi-media module receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
• Using this circuit, the DCM (telematics transceiver) sends power to the telephone microphone assembly, and the telephone microphone assembly sends microphone signals to the multi-media module receiver assembly via the DCM (telematics transceiver).

w/o Manual [SOS] Switch:

• The multi-media module receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
• Using this circuit, the multi-media module receiver assembly sends power to the telephone microphone assembly, and the telephone microphone assembly sends microphone signals to the multi-media module receiver assembly.