Did you plug in the relay and fuse? I also have the plugs already. I installed the switch just don't have the kit yet. I've heard it was just plug n play. [scratch]Well, there was a harness already in place. I plugged in the fog lights and put in the new switch hoping this would be an easy install. Fogs didn't come on. Rats.
The kit includes a lot of wiring and relays, as well as a rather complicated instruction manual (only pictures, no words!) Not sure if I'm gonna tackle this one myself..
I wonder what the original harness plugs are for..