[6772owner]

Bob,

I have an 08' GMC that I added factory driving lights too. I purchased the GM headlight switch that has the driving light button, it is a direct swap for the non-light version. I then Googled the wiring information and found the single pin out on the underside of the underhood fuse block. I used a GM connector I had laying around for the pin and just shoved it into the location on the fuse box. You have to add the fuse to the box for the system and then route the power wire to both lights. I used the factory ground bolt on each side to ground the lights. Everything has been working fine for me so far, hope this helps.