SKimballC -- that's what I did last night to find lighting and whatnot... just a pain in the butt, as I'm laying on 10 years of dirt and mud and I have limited daylight hours to get this stuff done after work. I wound up tapping into the light in the ash tray, as my gauges are over there near the radio anyway. They even dim, though, with that setup! Now I just need to track down 12V that's switched with the ignition and I'm good to go. If you saw the underide of my dash you'd know how precarious that can be.
Thanks for the 12V power location, though -- I'll check that out and see if it works for me! I appreciate it!