... I still dont see the point?
Maybe if you explain why I could help better.
Why do you want the fog lights on without the headlights and why would you go through the defogger?
If im understandig right anyways.. that you want to be able to turn the fog lights on without having the headlights on, just switch the wires themselves so the headlight wires go to the fog lights and the fog light wires go to the headlights