This howto was taken from Randy's Neon Page with permission of the owner.
Ever wish you could run your fog lights anytime, like using them as DRL's, or with just the parking lights, or even allowing them to stay on when you put the high beams on? Well, here's how, AND they turn off with the ignition, so you don't forget and return to a car with a dead battery and a code 12.
That's it, now you can turn on the fog lights anytime the ignition is on, with no headlights, with parking lights, with low beam, with high beam. This might be illegal in some areas, but I've seen plenty of cars driving around with fogs and parking lights as DRLs and other such stuff, so I'll take my chances. I drove around tonight for about an hour, pulled the module out, and nothing was geting warm, so I am pretty sure this is a correct wiring scheme. The rear defroster still works, too.