In the spirit of disseminating information:
MR. FJCZR had a post that showed his blacked out interior. I believe he was the first to do it. Here's what he told me in PM..
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>>MR. FJCZR: I used Rustoleum Textured Paint for Plastic on the interior, (I would suggest going with something that's smooth on the surface maybe like a flat black paint) just that it makes cleaning the inside easier. Everything comes off the two strips in the middle have screws on the bottom and then you pop them upwards and they come off. The vents on both sides don't have any screws, you just have to push or pull them upwards and they'll pop off. I masked the vents and then spray painted them. I first sanded everything down to take the glossy paint off so that the spray paint would stick on it. Sand it Clean it Paint it. Do couple of coats just to be sure. on the Steering wheel I masked all the buttons and everything else around the silver trim. Only left the Silver exposed and the rest of the cabin was covered with newspaper, I didn't want over spray on anything else. It's gonna take you some time but it's all worth it as you can see.
Good Luck.
Ahmed
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As for the brake lights, turn signals and headlights.. You can buy the paint in a can from xtremewhite.com (Ricer site) another guy off ebay (blinglights) sells it too.
Automotive Spray on Lamp Cover Paint Auto Styling accessories Euro clear Altezza tail light @ xtremeWhite.com
One can will only get two signals done, so plan ahead. You can look at my build to see it painted on the signals.. I wouldn't recommend it or any other paint on the headlight due to the loss of light. I am already running PIAA H4's and H7's and noticed a considerable difference when I installed the AeroFlow Smoke covers. The good part about those is you can remove them at will.