Removing the phone module (PHM)
NOTE:
Only carphone module (PHM) with Volvo On Call has a spare battery.
Deactivate the phone module (PHM) by removing the auxiliary battery. See: Reserve battery Volvo On Call, replacing .
Remove the audio unit. See: Audio unit, replacing (2005-) .
Press in the catches on the upper and lower edges of the control module. Remove the control module.