Finally got around to mounting my factory fogs to my rear bumper to be used as backup lights. I took the lights apart, cleaned them, and installed 55W bulbs first. Then, I used Coolerman's wiring harness to hook everything up. I attached a galvanized "L" bracket using the most rearward bolt that attaches my bumper to the frame to create a mounting spot. I didn't really want to mount anything under the bumper, but the only other good option was the roof rack and I didn't want to wire them up there. The lights are small enough though, and I put them up tight to the bumper, so they aren't too likely to take a hit and if they do, so what?
I was actually quite surprised at the light output of the factory fogs once all the mud was removed and the 55W bulbs were installed. They actually have a decent beam pattern and put out a good amount of light. Sure, they aren't IPF's or anything, but are much better than I thought. I used $4 PIAA bulbs, so if they blow it won't cost a fortune to replace them. All in all, an inexpensive way to get improved lighting out back.