I haven't found one. I tried the spray on bedliner stuff on the rear quarter panel and the floor and I didn't notice much if any difference. There is a spray called boommat that is $10 a can and is supposed to cover 10sq ft, but I have not tried it yet and don't know if i will. I'm thinking that I will buy a little more for my inner doors and I'm also looking for a better solution for the hood since I don't like the fact that the oem hoodliner only covers half of the hood. For that I was thinking about a product called lizzard skin, but it cost more and you need a special spray gun <img src="/forums/images/graemlins/frown.gif" alt="" /> still doing research on that.