Help Me Paint My Vents...

Hi, I was curious i am painting the interior of my car with the Vinyal paint. Whats the fastest way to paint my vents, am I going to ahve to tear my dash board apart to get the vent pieces out? I've been pulling lil things here their i did my speak covers, some knobs and stuff. Let me know please thanks, if you have done the inside of your car as well please post.

i found a once in a lifetime find at the junkyard...a whole dash is PERFECT condition..but i had to repaint it black with vinal paint then that was good..(it was faded) any who i would use semigloss spraypaint. i reused my old speaker covers and painted those with spraybomb