What I find strange about this is that Jayco's pictures online show a TV mounted to the wall (see below). Look at mounts from Mono Price
. Very good quality and reasonable prices. I bought one for my old trailer that could be easily removed because it had a folding TV stand. I use it still and have it clamped to the TV shelf, which is above my fridge.
Here's a though, use a below cabinet mount. The entertainment systems easily slides out so you can get at the panel below it. Here's an example of a below cabinet mount that might work
. But check Mono Price carefully, they will have others. Search on both TV and monitor mounts.
2015 Jay Feather Ultra Lite X23B | Jayco, Inc.