Guys,
I use Autoglym Glass Clear to remove the wax stains from the black exterior trim. I know it sounds strange using glass cleaner on plastic but it works. On the label it states that it may be used for this purpose it also does a top job on removing wax from glass. It costs £4.99 from Halfords.
Also, Simoniz have produced a new car wax called Teflon that does not stain unpainted black trim. I use it and saves alot of time and effort, as I don't have to go back around the car and clean up after myself. It costs £10 from Halfords.
Hope this helps
