Mine is a 2003. its sets outside thru snow, rain, sun. Theoutside was getting pretty dull.So I rubbed it last year. waxed it good. Took every screw out of the panels and replaced with new afterwards. If it's still pretty nice just wax it. The $25 drill master polisher from Harbor Frieght is the ticket. Buy 4-5 of the terry cloth covers for it. Wipe on Harbor Freight off. Stays nice. Washes way easier. Diesel soot doesn't stick to it. I also keep the tires covered out of the sun.
Doug
Thanks . Sitting home recovering from back surgery so thinking of getting a price for someone to do it this time around. I’m thinking like you said just a good waxing should do it
