as an addition if your paint is really faded the best cutting compound I have ever found is Brasso
used to be a car groomer when I left school for a few years, and we used to get samples of all the new stuff, but always went back to the tried and tested
its hard work but less abrasive than alot of the supposedly specialist products
put in on about a square foot at a time, rub pretty hard then buff it off with a clean rag, (do it in straight lines)
you will not believe how smooth and shiny you can get your baby
it might look smeary before you polish it, but trust me it comes up fantastically.
ps, dont do it on dark blue or black, it still works but its a helluva hard work
my favourite polish is simonize speed wax, with macguiers gold class wax on top of that
mmmmmmmmmmmm shiny