As Mr Spock would say, "a picture could help my analysis". But all Spockisms aside, glass is going to be more challenging to sneek a piece of wood away from. My first thought is obviously remove as much of the trim as possible for more stretchabilty. Think about maybe a heat gun used very.....very carefully and see if it loosens the adhesive. Or...maybe there is an option to remove it from the inside of the coach or at least get some help from there. I have a 2015 20fq, assuming the floor plan is the same if I knew where your issue is I could go scope mine out and check out options.