I'm going to make a wild guess that the original connection is probably for the tail light and that messy looking bundle of electrical tape is probably the brake wiring.
Am I correct to assume that there will be just one wire running to the brake lights and one wire running to the tail lights?
I assume the fixtures themselves will be grounded to the body or frame or whatever along the way? I guess I could look at that schematic. Hahaha
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)