Changing a speaker color

I'm no painter so I would find a local auto body guy to do it for me.  I'd just remove the drivers, speaker terminals, etc. and drop them off.  

Vinyl wrap is the easy button answer here.  

Vinyl wrap is a great idea if the cabinets are conducive to it. There are also products like 3M Dinoc that can produce a textured finish like faux carbon fiber (wouldn’t be my choice but it’s an option). 

+1 vinyl wrap great idea

I have Speakers Co In Brooklyn , I can do it to refinish High Gloss Black