This is the back of a 1976 Munster - euro option from a Stuttgart dealership in 1976.
I sent the unit to Radioman for a rehab, installed it and got it working.
Problem is that I don't have any lights - no dial backlight, no power indicator, no signal strength indication.
Could the circled male spade terminal have anything to do with the lights?
Radioman said it's not a ground - the unit is grounded to the chassis via the metal 'C' clamp on the fronk wall.
Thanks, Bill K