I'm trying to remember how the lights looked when I rewired mine last winter, I believe they were one piece with a ground wire/clamp on one wire and just a bare pigtail on the other wire. Naturally mice had completely decimated the wires in the roof. So I had to run completely new from the passenger side cab light all the way down to the light switch. I removed all the old lights and fished a mechanics wire across the roof below the cab light holes starting at the passenger side, hooked a new power wire to it and pulled it across the roof, and then once the power wire was pulled in, I puled all the excess wire out and then ran a mechanics wire up through the hole on the left side of the dash until I finally felt it at the hole where the drivers side visor goes, hooked the new power wire onto it and then pulled it back down into the dash to the light switch. Then I took excess power wire up at the roof to make little loops about 3 inches long sticking out through each individual cab light hole in the roof and then cut and spliced and piggy-backed two wires into each power connector, a male on the light side and a female on the supply side and then the grounds just slid onto the skin of the cab roof under the lights before bolting them down. crimped on a new connector to go onto the headlight switch and was done. Once I came up with my plan I had it completely wired up and working in about an hour or so. I used the Truck-Lite 1313A assemblies.
