I've seen the DIY for the earlier model, but I'm having trouble trying to find any help for the 2000. It all seams quite simple as far as getting the LED's from companies, I just don't know the right sizes.

The instrument panel in my '00 has a single large bulb, about 5 or 6 mid sized ones, the rest are very small (used for things like turn signals/break lights)
I believe the lights in the climate control cluster are the same size as the mid sized ones in the cluster.

If i want to replace them with Blue LED's what kind should i get, and what sizes. I hear people saying things like use 24's or 74's. What does that all mean. I want to use the stock plugs, but replace the bulbs, to a bright blue.

What's the best way I can do this

Thankyou