Location of connection in trunk for CD changer 1999 C320
concept is same. to aid in location proper FO lead, grab laser pointer and shine
into either of the two LED lens at the head unit end. have someone look for
light out the other end of the available/unused FO terminators in the rear. use
the FO plug which lights up.
see above photo for picture of power lead jack. plug is tiny, small black plug,
black harness.
your changer should be MC-3110, MC-3010, or MC-3198