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Audio Control Module (AUM)/External Amplifier To Loudspeakers, Gray Connector

Fig 1: Identifying Terminals Of Audio Control Module Gray Connector
GLL104015Courtesy of VOLVO CARS OF NORTH AMERICA.
NOTE: The connectors on the adapter cable must have the correct color-coding for the signal table to match.

Before taking any readings, see Checking the ground terminals .

Control module terminal Breakout box terminal Signal type Ignition on
B1 #1 Audio channel (+), loudspeaker left front AC voltage (to pin 2) when sound in the left front loudspeakers
B2 #2 Audio channel (-), loudspeaker left front AC voltage (to pin 1) when sound in the left front loudspeakers
B3 #3 - -
B4 #4 - -
B5 #5 Audio channel (+), loudspeaker right front Alternating current (to pin 6) when sound in the right front loudspeakers
B6 #6 Audio channel (-), loudspeaker right front Alternating current (to pin 5) when sound in the right front loudspeakers
B7 #7 Audio channel (+), loudspeaker left rear Alternating current (to pin 8) when sound in the left rear loudspeakers
B8 #8 Audio channel (-), loudspeaker left rear Alternating current (to pin 7) when sound in the left rear loudspeakers
B9 #9 - -
B10 #10 - -
B11 #11 Audio channel (+), loudspeaker right rear Alternating current (to pin 12) when sound in the right rear loudspeakers
B12 #12 Audio channel (-), loudspeaker right rear Alternating current (to pin 11) when sound in the right rear loudspeakers