I never follow the message on walls, I use a stud finder, which the studs are in most RV's are 2" wide.....If I place a large TV there, I use a 1/4 inch plywood over the wall and screw in 2" screws into the plywood and studs, then place the TV holder onto the plywood...
Good Luck, most walls are so thin....
Rich and Angela, Lab Dogs, Ruben, Ace
2015 Voltage V3895 2006 Lance Truck Camper
2013 Chevy 3500HD 4X4 CC DRW LB Bags Husky 26K Hitch Can Am Commander 1000 ATV