Kev,,You say you have tried Meguiars products??,,Have you tried their Dual Action or Power Cleaner to cut the dull finish at all,,I've seen trucks done by a buddy of mine with both of these cleaners,using a high speed wheel,and they come out very nice,,Keep in mind once done,apply a quality polish to seal the finish and then a good wax on top,,My 98 is Flame Red and in the sun will HURT your eyes,,Its been a year since mine has been wheeled with Dual Action and the finish with the polish and wax I use is still there,,I will wheel mine again before Carlisle Chrysler show to remove small scratches,,Wax I use is made by Hollander,its called UV-2,and I use the . 4 micron,,When done a light coat of Mothers Showtime is applied,, Since the paint on your truck seems to dull so easily,you may have to tend to it a little more often,,Let me know if we can help bring it to life again