If your plastic is already faded, nothing short of paint will bring it back. Protection before it fades is the key. The products that will be mentioned are only a temporary fix that you will have to reapply frequently. Cerekote is the best that I have seen that works the longest.
I figured out something when brining my plastic trim back to life. My bad areas were the wiper cowl and door handles. Nothing thing I tried worked until I scrubbed the bad areas with simple green and a tooth brush. Then it sucked up the back to black. It just had too much imbedded dirt.
