I have a red 2003 Mustang GT Convertible with a white top. I'm going to drive it in the Mustangs Across America drive in April and I want it to look its best. I bought the Meguiars NXT wax but I'm not sure what kind of cleaner/polish to use first. I bought the car new in the late fall of 2003 and it has been sitting in my garage all winter. I believe the only wax it has on it is a spray on that the dealer used just to shine it up before I took delivery. I've heard of people using Dawn dish soap to remove wax. Is this safe for the paint? I also need a good convertible top cleaner and protectant.