In 1981, could that be for a CB radio? Is the connector about 3/4" in diameter? Screw ring type? Kind of like a big cable TV connector?

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250