I too have been curious about changing the incandescent lights over to LED. When i took apart my dash i took some pics of the oem bulbs to see if i could find some. I've found similar looking LED bulbs on superbrightleds but have no way to confirm if they're the right ones
Here some pics of what the OEM ones look like. I just might order some that are as close to OEM as possible and see if they work
I know there's two bulbs for the climate control switches but i forgot to count how many the cluster took but it was quit a few.
linky to LED cluster lights >>> Instrument Cluster and Gauge | LED Car Bulbs | Super Bright LEDs