I wax oiled mine the day I brought it home. Trust me, it works like no other product out there. Your local body shop supply store will carry it under one brand name or another. It never truly dries, it's waterproof, and just plain works. It's runny as hell though, so although I apply it generously, you have to leave the doors open all night to let it run out the drain holes. Give it a wipe in the morning, and again every night for a few days, and in the long run you will be very happy with the results. I did my doors, fenders, and inside the box, from the bottom side of course. The only thing I didn't do was my cab corners. Too lazy to take everything all apart to get there, but it would be a very good idea.
Wax Oil. http://3mcollision.com/products/coat...r-i-08892.html
Just one of the many brand names out there. You don't need to pay for the 3m name, Dominion sure seal also has one, http://www.dominionsureseal.com/prod...id=53&catid=28
as do many others.....