Where can I buy the pigtails for the factory fog light? None of the local part store's I've been to carry them.

Does anybody know where in the wiring harness I can find the ends that go to fog light if the car didn't come with fog lights? I know they're there somewhere because the socket for the relay and all the wiring uder the dash was there, minus the relay and fuse themselves. I was hoping to find the pigtails hidden somewhere behind the front bumber but no luck so far.