yeah. there's tons of LED threads....search 'em out. I went individual 5mm LED's because from my experiece, plug-in 194's suck in the clusters. They may have improved in the past couple years since I went this route with the gauges, but i don't know.
google 'john griggs cardomain' and find his cardomain page....it's FULL of how-to's and it's what my clusters inspiration came from. Gonna have to go page by page to find the cluster color mod.