I bought my 97 grand prix a few days ago. I noticed the headlight knob switch wasn't working as it should. It did nothing at all but make all of the dash lights flicker, but my brake lights, signal lights & dash lights all worked. I was driving home, got pulled over for no plates, then got pulled over again 1 minute later (no lie) for the same reason. He asked why I turned my lights off when he got behind me, which I clearly didn't do.

Long story short, the lights are no longer working. The radio clock and display that shows fuel mileage works fine. I replaced the number 15 fuses, number 2 fuses and also the headlight switch. Still nothing. Any suggestions?