Lately the lights on my control panel and my a/c, temperature assembly have not been turning on when I turn on my headlights. This makes things kind of inconvenient because I can not read any of my gauges at night. I know that it is not just burnt out lightbulbs because none of the dash lights turn on. I think that it must have something to do with the dimmer switch. I have no idea how to get in there and fix this. Does anybody have any ideas? Any help would be appreciated, thanks in advance.