My dimmer switch actually lit up for the first time tonight, after I replaced the one bulb behind the HVAC controls. (Finally got off my ass to tinker with my car after 8 months of not seeing my controls). The only thing that bugged me is that I bought #74 bulbs, but the bulb was a bit bigger and the plug end was a bit shorter, requiring me to shave some of the plastic off the plug to allow the light to sit a little lower and lock in (I just don't know if it's touching the backside of the controls and if that would cause a problem). Also, my car has the fog light harnesses in the engine bay, as well as every switch harness for every single option. I wonder if it's because my car was built in June of '94. Maybe they wanted to save a little later on. Don't know.