go to a hobbie shop, where they sell RC cars and such. Ask them for Windo tint, for the Lexani body of the car. Clean the surface of the Tails and tape it off. Then just do light layers, let it dry for 5 min each. The more you do the darker it get, but the cool thing is when the sigal goes on, it is transparent. The amber shines right through, and so does the parking reverse light.