I am rewiring my 53 half ton and ran into a problem on the light switch. Someone rewired it at some time and upgraded to 12 volt etc. The light switch has seven wires, the headlight power wire is a double wire, but I only have one power wire coming from the fuse panel. Do I splice the one wire into the 2 wires coming from the switch. Seems logical but I am not sure, can anyone help on this? Thanks, Coach Frank