Microphone Circuit between Microphone and Radio Receiver [10/2013 - ]: Description

The radio and display receiver assembly and roof console box assembly (telephone microphone assembly)*1 or inner rear view mirror assembly (amplifier microphone assembly)*2 are connected to each other using the microphone connection detection signal lines.

Using this circuit, the radio and display receiver assembly sends power to the roof console box assembly (telephone microphone assembly)*1 or inner rear view mirror assembly (amplifier microphone assembly)*2, and the roof console box assembly (telephone microphone assembly)*1 or inner rear view mirror assembly (amplifier microphone assembly)*2 sends microphone signals to the radio and display receiver assembly.

The radio and display receiver assembly and inner rear view mirror assembly (amplifier 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 inner rear view mirror assembly (amplifier microphone assembly), and the inner rear view mirror assembly (amplifier microphone assembly) sends microphone signals to the radio and display receiver assembly via the DCM (telematics transceiver).