I have always dyed my panels and recently dyed my door pulls and panels from tan to black.
Like any coating, you want to thoroughly clean the surface first, then hit it LIGHTLY with some fine sand paper, like 800 or 1000. Clean it again and then wipe it down with some tack cloth.
Spray super light coats. I use Dupli-color Black gloss dye finish first to cover, then dust it over with the flat black dye that they make. It gives it a really nice OE finish that doesn't look painted on.
Otherwise, the gloss is too shiny and the flat is to dull and shows scuffs easily.
It's a weird format and usually you would apply flat first then gloss and I stumbled on it becasue I grabbed the wrong can a long time ago to put a final coat on. It came out so nice that I kept using the gloss first then final coat with the flat.
They always last, but in the event they scatch, you can touch up easily.
I'd take a picture, but you probably wouldn't be able to pick up the detail on camera. I'll check it out though and post it if it's visible.