just picked up my 04 a few weeks ago, and it was blowing fuses. found that one of the chicken lights is grounding out somehow, so i just unplugged it. well then the dash lights took a crap on me. so tried all the fuses, but couldnt find a bad one. so i went to the ford house and got a new switch. stuck it in, and got the lights to work finally.. well now they wont dim or brighten any at all! any ideas as to what the problem could be?