I just got my new gauges installed (and I must say was one of the most motherf''''n jobs I've done so far - what a major pita) and I can't seem to get them to dim with the dash dimmer. They light up fine but won't dim. I tapped into the ashtray light which I know dims. These gauges are the Autometer Lunar's and they have electronic LED looking lights in them, perhaps that's why???? Any ideas?