I am re wiring my 87 1/2 ton. I am using a Painless wiring kit. I have duel tanks on the truck. Does anybody have a diagram of the wiring for the switch. There is no diagram for the switch I have three wires on the kit and four wires on the original harness. I figure one is a ground. The wires in the kit do not match color wise with the original wires. Any help will be appreciated.
