Any suggestions? My recently purchased mostly one-family owned '67 SS likely still has the original headliner in there....it's not very noticable but there are several white areas in the black headliner that have mildew/mold from sitting in a garage for 50+ years. How do I remove these spots? If all else fails I thought I'd use that black Dupli-Color fabric/upholstery spray paint...just a thought.