What sort of finish do you want?
You got the rubber type coating on your dash, the same as they put on the buttons and knobs?
If so, you can remove that with some thinners.
That's what I did with my dash bit around the gear stick and then wrapped it.
I also plasti dipped my dash but it kept all the texture, if you was going to do that, you'd want to make it smooth.
I painted my BMW dash but that was a *****, I had to sand it all down till it was smooth, primed, painted and lacquered. Lasted many years.