One night, out of the blue, I turned on my headlights and the instrument panel and center console illumination was about a quarter its normal intensity. I've been digging through electrical diagrams online (alldata.com), but it's hard as hell to find information in there, and can't figure out where the "X6/1" relay is (that handles all comfort lighting). I'm thinking it might be the culprit, but I could be wrong. Has anyone else experienced this? If so, where might I look to start fixing it? I'm going crazy trying to resolve all the little issues with my car, and this would be a nice one to tackle. Thanks in advance.