Hello all. I drive a 1997 Miata and the black interior plastic is kind of faded and just doesn't pop like I want. It also has some slight scuff marks/blemishes. How do I get the black to be a deeper/darker color and how do I get rid of the minor but noticeable scuff marks? I've tried armor-all wipes and it looks good while it's still wet but after a minute it dries and it's back to where it was.