I just got done detailing a Baja...it was covered up for a year. Typically I just use the vinyl cleaner with the vinyl scrubber/applicator 3.65 cause it gets the product down deep into the pours..this usually does the job..but on this boat I sprayed the product directly on the seats, used magic erasor and then went over it with the scrubber. After two times it came out great.
As to the polish I use it on cars and my trucks as well. We also make a Groove wax aka Tow rig shine. If you have some scratches or swirl marks this can be used as well. Call me if you have any Q's..Link is below..Thanks Jeff