I was just given a set of brand new foglights. Would it be possible to hook them up to my stock headlight switch?? From looking at the Haynes Manual, I'm pretty sure the fog light switch is the red/yellow wire. Also, what wire would I be hooking up? There is a red wire that goes to the switch, a ground from the switch, a white wire that goes from the switch to the foglights, and the ground wires from the lights. I'd like to get rid of the switch that came with the fog lights and just use my factory switch.

 

NOOOOOOOOOOOOOoooooooooooooooooooo................

 

The only way is to tap into your light wire harness which I wouldn't recomend as it could cause a problem latter on but if you keep a watch on the tap from time to time you should be alright.

 

Do it right and wire the new lights to an aux 30 amp relay with it's own fused 12 volt source from the battery and trigger the relay off your existing Fog lite wiring or a seperate switch.
OR:
I have a setup using a rocker switch so I can select between the original lights and the new yellow Fogs.
The rocker switch is installed in the fuse cover so it's easy to do and get at..
To do this, the relay needs to be a single pole double throw type (tranfer contacts) to be able to go between the seperate lighting.
This way uses the original wiring 12 volt source that is being switched between the lighting systems as long as the new Fogs don't draw a 'great deal' more power than the stock lamps do.
All the switch does is connect the ground side of the relay so only a single wire need to be fished into the cab to make this all happen.
Note that the lighting only works on low beams headlite operation this way.
The factory never allows Fogs or stock driving lights to operate with hi-beams on for legal reasons. That is the way the headlamp switch is setup.
Please be responsible and take time to AIM the AUX lites so they don't blind oncomong traffic.