Please Clarify. Are you saying that you have headlamps that turn on automatically when the ambient light level drops below a certain point? Or what?
The ultimate answer is YES, as anything is possible :mrgreen:
You can always trigger the fog lamp relay from one of the headlamp sockets, thus the foglamp relay will turn on the fog lamps Whenever the headlamps are on. The one thing you cannot do is attempt to power the fog lamps directly from the headlamp circuit, as the stock wiring is too small.
-Nick :!: