My sister has a 2000 grand prix and its a gt. Her sunroof wasnt working so i checked the fuses. it was burned out so i replaced it. i tried it to see if it worked and nothing. so i pulled the fuse again and it was burnt out already. and i tried a bigger fuse cuz sometimes you can get away with that(i know its frowned upon) but it just sparked when i pulled it out. I need to know where to start looking to fix this problem