LOL I posted a reply with pics to this way back.
As for krylon fusion I use it all the time works great on hard plastic like door panels.
As for him skipping prep and sanding I thought he meant the metal areas which would work, but still needs grease and wax remover used on it due to armor and such products, not to mention hand and body oil.
As for plastic if you sand it you'll loose the grain of it. Unless the paint is flaking off I'd just wipe down with grease and wax remover and paint. if it is flaking I'd strip it with like citristrip, stuff works great I love it.
On the following pics I used krylon fusion white and masked the blue areas off, the blue is original, the white I painted on including the dash insert, although the dash is a accuform cap and was painted with sem interior stuff. I even did the parklights and taillights the same way, put bowties on them and painted the rest white.
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