I recently changed the front of my car from a non-foglight version to the foglight factory version. I plugged in the foglights to the harness by the headlights and changed the switch to the original dual lit factory version with the rear (orange) light and the front (green) light. I started the car and had the rear fog lights working fine (including the dash idiot light). However the front fog lights are not working. The dash green light in NOT on and the fuse is good. (circuit #7 using 15 amps). Here are my questions.
1. Does the circuit need a relay? If so 2. what is the part number and 3. where do I install it? I bought a Chilton Repair Manual and the circuit diagrams have no fog lights at all. Thanks

 

I did get the wiring diagram and the fusepanel did not have the fog light relay. So after getting the relay and putting it in... Voila ... I now have foglights!. Now the next questions is ... is yellow better in fog than while light?