On my radio bezel, I used Rust Oleam(spelling?) auto primer, then Rust Oleam gloss black, It adheared real good. I sprayed 2 coats of primer, then 4 coats of paint. Since it's an enamel, it has the clear coat built into the paint.
When wetsanding, you should have a bowl filled with warm water, a spray bottle with warm water, and lots of sandpaper, high grit, like 800-1500 grit, and something to support the paper while using it. Soak the paper in the bowl til its wet as hell, spray the surface with water, and wrap the paper around a tire swegee or a square sponge, and make some passes in small areas at a time. Make the passes until all the surface is smooth and clear.
Wetness is key to wet sanding, I've only done it a couple times, but do enjoy doing it. Take your time, make sure there's plenty of water on your surface. Use lower grit to see what it does, lower meaning 800-1000 grit. And work your way up. Keep going as high as it needs to go to become shiny.
Sorry for the long post.
'01 XLT disguised as a '03 Fx4 Level II
Big. Loud. Slow. Bright.