I know this is quite an old thread, but I thought I'd answer this question since I currently have my fogs wired this way. Because the fogs use a relay to turn on, you basically just need a second 12V source that's independent of the lights. I used the one that goes into the back of my head unit. Now as long as my key is in ACC or the engine is running, I can turn my fogs on without turning even my parking lights on.Just curious if anyone has figured out a legitimate way to run your Fogs WITHOUT any of the other lights on...