Sorry to start another thread about this but haven't found one that had what I was looking for. So here we go.

I have a 99 classic that has the pigtail for the fog lights, but that's it, no wiring in the engine compartment and nothing in the fuse/relay compartment in the engine bay. I want to use the factory switch, which I bought and have the correct bezel. I want to wire them up like they were factory meaning that they turn off when the high beams are activated. I just for the life of me figure it out. Please HELP!!!

 

I'm in the same boat with my ZJ. I left the boneyard today all fat dumb and happy with a fog light harness, headlamp switch, brackets, and some other stuff, only to find out the PDC is not even wired for the fog light relay or fuse. Pisser.

 

 

How do I do that with factory switch and wire it so they shut off with high beams on?

 

Here's the '99 factory wiring:
The fog lamp control relay grounds through the high side of the high beam bulb. When the high beams are off, the relay can operate, grounding through the bulb filament. With high beams on the fog relay is disabled since +12V is applied to both sides of the coil.