G/Box revers wireing

[loco440]

I was under the car cleaning and noticed a two prong switch poking out of the back of the 4 speed box that had no wires off it so this must be why I dont have rev lite,could some one tell me if I ran two wires from said switch to the fire wall plug which socket would they go to,I did notice some one has cut two wires off the plug directly under the wiper motor plug would this be the one to rewire?

[OUTLAW]

what year / model you working on and what color are the cut wires ....more info

[Chryco Psycho]

there is a single small plug under the wiper plug with 2 wires , usually black & black with a white trace , that send power to the switch & back to the tailights

[loco440]

Sorry I didnt supply enough info,70 r/t chall, chrico was rite but some one painted the firewall black and cut the wires of real short so dont know which one is what but there is three wires going into the plug,the bottom one is single and there is paired two on the top with one going back into the firewall behind the brake booster,what is that one?

[Chryco Psycho]

probably for an automatic , it would ground the starter relay in the tranny to only allow it to start in Park & neutral , it can also go to the clutch pedal switch if your car has one