So hook them up and go, Your not trying to hook them to the light are you?? Just use a relay, two exactly. One on high one on low both in parallel. wHEN LIGHTS ARE OFF, FOGS ARE OFF.

Durn cats

This will not overload the light circuits and still does your deal with relays and a fuse of course. Woody

BTW it would be good to go to the HID's as thats more light and Id suggest 55w HIDs for the low beams , the HIDS are slow to start and makes flashing the hi's difficult. WW