When I roll down my passenger side window, it makes a terrible screaming sound, like a screaaachhhhh. My thought is that the outter plastic trim has hardened over time and it is just like fingers down a chalk board, dunno, maybe.

Any solution ideas out here?

 

they make this rubber conditioning liquid. put some of that one and you'll be good. also pry the rubber away from the window with your fingers the stuff dries