XC90 AWD L6-3.2L VIN 98 B6324S (2007)
The Audio module (AUD) has outputs for connections to the left and right headset panel. The headset panels are located on the inside of the C-post.
Each headset panel has a control for volume, next track, previous track and source.
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).
For further information, see Design and Function, phone module (PHM).
Playing back sound