I found this site, which seems pretty indepth in regards to inboard care and maintenance. It specifically mentions leave stains, and talks about ammonia and hydrogen peroxide. That seems a little unorthodox. Anyone know anything about if their suggestions would work or would do damage to the vinyl?
Edit: Forgot the link. http://mninboard.com/servicetips.htm and click under upholstery upkeep.
(Message edited by wkbrdindmax on October 22, 2007)