[TV MAN]

You may want to check out these:

https://www.youtube.com/watch?v=KiF9rgfEsOw

40934 210 Plastic Cleaner/Polish - 14 oz.
by Camco from Amazon

https://www.youtube.com/watch?v=7j-gR5YE6J4
https://www.youtube.com/watch?v=hpSYGQA6spI