Hey, for those of you who have an aftermarket guage, where did you pull your light source from? I have an 03 that I just put a tach in, but when I use the Green w/red wire, it doesn't dim. I would like to be able to dim my tach with the dash lights, but don't know how the wiring works. In the schematic, it takes green w/red and sends it to the lights, coming back is white w/green going to the rheostat, but I can't seem to make it work. What am I missing? Thanks in advance.