I've ordered the illuminated M3 shift knob for my e46. My question for those who have done this mod is, did you guys provide the +12 V that comes on when the key is inserted, or did you tap into the +12 V that dims with the rest of the interior dash-area lighting? Since, I usually keep my dimmer switch set to minimum, I was wondering if it would be better to just keep the knob at max light intensity while my dash is at the minimum intensity.