A friend of mine left her mustang convertible with me last year after her and her husband were transferred to Texas for a year. The reason they left it with me was so I could do the body work and paint the car while they were gone. I have completed all the work I was to do on the car but I have a lot of tree's in my yard. The top was relatively new when they left the car here. Next month they will be back and I would like to clean the top up a little but do not know what to use on it. Does anyone know a product they would recommend?