As a side note, I've had a similar situation. Not my car but my friend's and it was sold as used so the issue wasn't exactly like yours. I found that paying axtra $500 for this toy (
http://www.defelsko.com/applications...-detailing.htm) is well worth it in the long run. In fact if you split the cost with a few of your friends and have this thing around every time you buy a car is a great idea in my mind.