If there is coax and power, likely there is a mounting pad built into the wall for a wall-mount. You can use a common stud finder to locate it, or simply tapping on the wall will work as well.
Another option would be to find other units of your model with a wall-mounted TV.
Help that hopes!
Formerly: 2000 Four Winds 26Q/Ford, '96 Kit Sportsmaster 22' 5th wheel, '91 Sunlite truck camper, Wildernest flip-top canopy