GM Delco Bose Wiring Diagram

Remove the cover of the amp.  Where the pins of the plug hit the circuit board, there are going to be 6 traces that go directly to the output devices.  There may be 3 or 6 devices.  Some of the traces may be on the underside of the board.  That is where the meter may come into play.  If you can not  see the traces of follow them to the output chips, set your meter to the diode test or continuity setting.  Whichever setting is quicker at making the meter beep is goung to be your best bet.  Touch and hold the leads together and notice how long you have to keep them together before you hear the beep.  Place one lead in an unidentified pin of the amp, now touch the other lead to the pins of each output device, you have to leave it on each pin long enough for it to start beeping.  There should be 2 wires that go to each output if there are 6 devices.  4 to each if there are 3 devices.  Once you find the 12 wires that go to the outputs, draw or take a pic of the plug and label the wires that go to the outputs.  I will instruct on how to find the inputs when I get home tonight.