I did on my 96. I found connector by the bumper and 2 fog lamp relays were in place in relay box, but I didn't find the connector behind the dash, so I did my own wiring from switch to relay box. The first relay is used for turning fogs off when you turn high beams on, I guess. But I think wiring harness in my truck was messed up and fog lamps turned off whenever I turn on my park lights, low beams or high beams. I took out the first relay and wired switch to second relay.