HI JEFF
i have a 1997 e320 and the am is not working. tried another unit and it works.

how did you fix yours. mine scans for stations but nothing( as though the aerial is not plugged in)

ALSO i find my volume control is erratic. sometimes you just click it 1 or 2 and it responds and other times you have to turn the dial a lot. disconnected the speed sensor for volume control but still the same.

THANKS