SaukRapids 
Talking about this after dinner reminded me that they're LED's. So, I just took it apart and looked.
If you've done the HUD fix, this is what you'll see after opening the cluster case.
I marked the gauges quick (small arrow). The holes are for some alignment tool if you want different colored backgrounds (large arrow). Those gauge faces are expensive, imo. Probably more worth a second look after this mod.
The leds are all over. The problem at this time is that my ABS computer's bad. I'd probably have trouble telling which leds are for illumination only. (Solved)
Measured.
I took a few minutes remembering things from soldering days. I didn't have the time to measure voltage, but I'd guess it's 12v. These are SMD leds that are approximately 3mm square. It took about a half hour, but I think I came up with what they are. Now, replacing them is another story. I have the skill, but I only have one cluster on hand.
Search for SMD 1210 or 3528. You can try googling "1210 (color choice)", but here is a direct link to the LEDs I used. You'll want the ones maked "PLCC-2." The four pad ones marked "PLCC-4" are incorrect. http://lighthouseleds.com/catalogsea...imit=15&q=1210
