V50 L5-2.4L VIN 39 B5244S7 (2005)
The integrated audio module (IAM) functions as a stereo system in the vehicle and is connected to other control modules on the MOST network.
If the accessory electronic module (AEM) is installed, the sound from the integrated audio module (IAM) is muted during telephone calls if a handsfree
set (accessory) is used. The sound is also muted when reverse gear is engaged if the vehicle is equipped with the parking assistance system (accessory).