Hello ALL! I’m trying to mount a 50” TV in my 2022 Mallard M312. There’s a flip up wall above the fireplace with all the TV connections on it. I’m trying to figure out if there’s small studs or anything like that to screw into. My stud finder couldn’t read anything. I watched a YouTube video that suggests that there’s a metal plate in the wall but I find anything with magnets. Please help! Thanks!