I see, makes sense, but my car doesn't have those (rear fogs).
I dug around under the dash to find the fog light wiring, and found the plug taped to part of the main harness. Checked under the hood and found both wires to plug the lights into, hooked up the swith from my parts bin, put fuses into the box, and I'll go to bmw tomorrow to order the fog lights. I still need to put a bulb in the dash though, but I'm in no hurry to do that. I also replaced the burnt out bulb that lights the paned over the headlight/fog switches while I was in there.
Had some fun with my GF's car too. It came in handy to see what the wires looked like, and I switched my E34 glove box latch on my E30 for hers, yanked out her ugly steering wheel and put in an M-Technik one I had in my closet. Fair trade I think.