Audio Module (AUD) (2007-2008): Design: Microphone
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The microphone is directly connected to the audio module (AUD). The microphone transmits analog signals to the control module.
Telephone calls can be made either hands free or using the handset. During handsfree calls, the microphone and speaker are used which are connected to the audio module (AUD). The microphone is phantom fed via the audio module (AUD).