I got a couple of side by sides free while doing a PSU dorm remodel this summer and I don't really need another fridge in the shop but I would like a full size freezer or two. I just had this idea to cut a couple small holes high and low in the divider to allow the colder air to circulate into both sides. The cooling is done with forced air so I don't think there are any surrounding refrigerant lines. They were free so I can't lose if I make a shallow cut in the liner with a dremel tool and look around for wiring, etc. Any HVAC control reasons against doing this?