Get your hubby to put one of those snap brackets, like you would use for a broom in the garage. And put it on the wall behind your theater seat, then it won't bounce around. I have turned that space for storage of odd stuff like the ladder and my wife's swiffer steamer thing
and there's more room for other odd stuff.
2020 Eagle HT 30.5 CKTS, MORryde Pin Box, Zamp Solar, Xantrex Inverter
F-250 4X4 Supercab w/SB, 6.2L,Camper Package, Factory 5th Wheel Hitch, Demco 18K Autoslider