On my THOR Palazzo, the access hatch was under the carpet inside the under the bed storage. I had to remove some of the carpet to find the edges of the hatch. I cut the carpet along that edge, stapled the carpet down, removed the fasteners, added two draw pulls, and marked where the fasteners go. I installed the fasteners on top of the carpet. Easy to access now. Yes it is hidden! So the 2009 Damon Tuscany 4032 hatch must be as well. Remember people who design RV's almost never have owned one. Who would think that one need to access an engine compartment!