Your harness should go from your foglights to the factory plug under your hood which is a blue wire with brown plug. Plug that in, then go under your dash and find the other end of the blue wire, should be taped up under there. Cut the plug off and splice wire to it and run it to your headlight low beam fuse. Works great and fogs shut off when you hit your high beams. That is the way i ran mine and they work great, not popping fuses or anything.