When sleeping in the back of the Prius, the key element missing is a way to open a closed hatch from the inside.
This plug-in to OEM hatch switch connecter harness allows you to have a push button that works like the push button on the outside of the hatch. Does not include a plastic inner hatch panel piece.
To install, remove the inner plastic trim on the vehicle, and unplug the connector from the OE switch. Plug in new harness to OE switch and OE switch connector then proceed to place grounding wire under main hatch grounding bolt.
Drill a hole in the hatch plastic inner panel that’s removable closest to the driver’s side. Install the switch and re-install the inside hatch plastic trim panels.