I'm considering offering an LED taillight kit for Chevy and GMC trucks. This would be a retrofit kit that has a small circuit board that fits in the taillight housing behind the lens. It would be custom shaped specifically for the housing, be compatible with both 6 and 12 volt systems, positive or negative ground, and have a white led in the back for the license plate. It would also have a conformal coat for moisture resistance. If anyone is interested, please private message me so I can get a count of how many people want them. It depends on the quantity ordered, but I should be able to offer kits for $25 or less.
