I don't think there will be a way to change the color of the entire cluster on this car, unless the '10 has the option (which I don't see that happening).
Here are the gauges from my truck (sorry the picture isn't clear--I'm at work). I bought a bunch of leds, and swapped out all the bulbs in the cluster. On the Z, it looks like you could probably swap out the tach and speedo, but I doubt you can do anything to change the multi-function gauge. If you still want the link to the led website, I can post it when I get home.
