Has anybody heard any roof noise when taking their car through a car wash. I get a popping noise similar to somebody walking across the roof when the car goes through the air drier at the end of the wash line. The noise is over the back seat and is very loud. Dealer service and body shops say they have never had a complaint like that before. When I had my Vette in for Service the other day the service writer said he still hadn't found anybody who had the noise. Its been about 5 months since I had the car in for service and it will probably need an oil change within the next 60 days so when I take it in for service I may ask them to send somebody along while I take the car through the wash.