ianmac23 Tap around on the wall there and see if it might be a solid back board installed behind the 1/4-inch thin stuff. Seems like most of the newer trailers I see photos of have that sticker on the wall there along with the TV HOOKUPs.
Looks something like this...
If the wall is solid when you thump around on it might be ok to mount a LCD bracket there with just wood screws?
Just showing photos from google - not mine..
Oh another point I learned about LCD brackets - Make sure the adjustments goes up and down as well as side to side. Some TVs don't view well unless they are more pointed at where you are looking from...
Roy Ken