I don't have your model,make coach (see sig), but I removed the old TV and mounting box in the corner of ours and replaced it with a flat-screen.
There are previous threads from owners who have done this, some rival professional jobs, some-like mine are simple and (to me) look home-made
__________________ 2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
I left the "box"' where the 26“ tube tv had been, mounted a plywood door on it with a piano hinge, and mounted a 32“ flat screen on the plywood door. The plywood door has two friction catches that keep it securely in place. We use the box behind the tv for storage.
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Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e TRADED OFF JUL 2023 / '17 Jeep Grand Cherokee toad
Did about the same as AF. I cut the plywood door/ mounting area about 3/8" small then covered with rug runner black in color with Gray in the patent. Glued and folded over the back and stapled, then drilled holes for cabling and power. Mounted with piano hinge, then got a tilting mount and screwed it to the covered ply wood, looked great. Also put a latch on the bottom edge and can tilt up for storage.