[kingjames64]

i had the same problem for the last 8 months and just fixed it last night!

After trying everything, like replacing the fuses, buying gauge covers, and asking thousands of questions i started reading up on how our cars are wired up. My Gauges, hvac control, shifter area, and doors messed up when i was installing an after market cd player. I knew it wasnt my dimmer wheel for sure because i had replace it and using a test light evrything had power on it. I found out the gray wire, at least in the 2000 4 door v6 model, gives all of these lights power.

I pulled out my gauge the i cut the gray wire that plugs into it and i noticed the gray wire behind the hvac control wasnt plugged into anything. I ran them to a fuse and they turned on! However i wanted to be able to control them with my dimmer switch. So I then pulled out my dimmer control and after studying the wiring diagram saw that the green wire was the power out for the dimmer control. I testd the wire saw that is was hot so i ran both of the gray wires to this wire and BINGO! dimmer now controls all the lights.