Welcome to the forum!
I assume you mean a cabinet for towels, wash clothes, etc. and not a medicine cabinet? You'll have to use the studs in the wall. I've heard people say that stud finders don't work. Mine works great for finding the studs. I just wouldn't mount anything heavy. I believe your wall is the back of your camper, so it'll hop and bounce being in the rear of the TT. Good luck!
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2013 Jayco Eagle 328 RLTS
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