I've been stalking the forums for a while but figured you guys might be able to help me with this problem. I mainly drive my car in the daytime and never noticed the problem, but now that I drive it when it's darker I have found that when I turn my dash lights all my electric gauges stop working (clock, fuel gauge, voltage, etc). Im thinking it might be in the light knob or a ground in the dash. or a short. I'm not super knowledgeable in electrical, but I can do the basic work. it's a grand prix LJ with rally gauges