Originally Posted by schatten789
why cant I just unplug the switch im using now and plug in the stock fog light switch?
What wires are what on the fog light switch?
Your switch controls the power side of the relay control and the fog light switch controls the ground side. You could eliminate using a second relay its just that I didn't feel like running more wires through the firewall since my relay is under hood. The fog light switch controls the ground side of term 86 in my diagram or 85 of yours. You would need to tap off term 87 of your diagram and run a wire back to term 6 of the fog light switch and it will work.
Fog light switch pin out:
3 is the input from the relay control ground.
4 is chassis ground.
5 is from brown wire on headlight switch so it lights up when you turn on your park/headlamps.
6 is so the indicator light comes on telling you the lights are on.
Heres a diagram using your relay and configuration . Note, the acc lights will only work if your backup lamps are on when you hit the foglight switch.