Physicslawyer
Member
We have had no issues propping up the sub trunk cover with the model we bought.I have the same concerns, that heat has to go somewhere. My 12 volt Dometic fits nicely in the back of my Y, but if I ever wanted to put it in the sub-trunk, I would probably cut a piece of MDF as a replacement sub-trunk cover, and them drill enough holes in it to provide some ventilation.