I have a 98 cobra and it has been under a car cover for about 4 months and hasn't been washed until today. Well my top has alot of mold/mildew on it and i washed the top but it only seemed to lighten the mold a few shades of color. I'm scared to use bleach and not to mention my top is tan so it shows up. Is there any product that would kill the mold and maybe get the top back to new looking like it was?