I am the second owner and have had a great time with this URBAN COWBOY'S TRUCK. Pictures will show how the previous Houston owner and I have maintained it. I had it in my garage during the long winter here in PA. Only 2500 MARK LT's were produced in 2007 and this is a great find for you. Tire upgrades are 23" FALKEN rims surrounded by 11 1/2" wide NITTO 305 40R 23 115H's gripping the road. Everyone who sees this truck is spell-bound by it's throaty sound and great looks. Audio upgrade is a $1. 00 PIONEER AV 1C-F900AT touch screen installed by previous owner. The only things I have used are GPS. SIRIUS. Bluetooth. CD and HD radio. but the 188 page manual shows a lot more that can be used including iPOD. DVD and MP3. The remote access and two keys are included. We are downsizing to a condo so the truck must go. There are no cars on my trading wish list. Please check out the pictures and GOOD LUCK ON YOUR BIDDING.