I know I saw a thread about this, and now I can't find it. So I apologize for the redundancy.
I recently removed the plastic tail light assembly on my 72 Argosy, which had a 2 bulb set up, one of which was enclosed with a clear reflector type lens. This would lead me to think that it was a backup light. However, the lamp was lit (both sides) when the TV lights were on. Now I'm installing a 3 lamp tail light lens, and when I hook up the TV and put it in R (reverse, not race), I get nada on the lamp with the clear reflector lens. As usual, I thought I had everything documented before removing the old plastic assembly, but now I can't decipher the photos I took during dis-assembly.
I've hooked the TV up to the umbilical cord and put the TV in R - no lights or turn signal - and tested each wire at the rear of the trailer and get no indication of juice.
So two questions: First, when did AS start using backup lights?
Second, if I don't have wiring to accommodate backup lights, should I just "bundle" the hot wires so that when the TV lights are on the lamp in the clear reflector stays on, or should I disconnect it entirely? But then why did the original set up have the clear lens and lamp?
Ok, that's 3 questions.