My memory may be faded, but i am pretty sure i can recall some 4 light systems from when i was a kid that one set of bulbs had been swapped out with the amber fog lamp bulbs, i would love to do this to my car.
Has anyone done this? if so where did you source the bulbs???

Thanks

 

Available from Octane Lighting. I recently purchased these.

 

I got mine from ebay, 5.75 amber fog light made by ge, they are not clear plastic, they are glass sealed beam. I then rewired them to their own harnes with a relay and a stock fog light switch on the dash next to the tach.