The new box mounts with four studs protruding from the back of the case. We decided to hide it in the nonstock glovebox hole so it would be hidden from prying eyes with the door shut. The location makes it easy to access for plugging in the welding cables or appliance cords. We welded a bracket inside the cowl for a sturdy support, but it's still easy to service. Under the hood is another popular mounting location, but we prefer not to have to open the hood to fix stuff.