It was wicket easy to tap into the 12v line to the light in the hatch:
Probably the most labor intensive part of this project was making little feet so the door will swing open fridge-style and clear the hatch frame. I just cut some hunks of 2x4 then used both adhesive and some decking screws we had around, the screws aren't super long, thus the belt and suspenders of the adhesive:
Voila! Our "new" mini fridge for beverages and condiments!:
And here's how I think it will ride when we are in transit to avoid toppling over:
I'm thinking we won't use it when dry camping because of the draw on our batteries. We do have a pair of 6v golf cart batteries, so we have quite a bit of juice...but I'll have to do the math on how long this would hold up, not too long before frying them I would think and it obviously isn't a necessity.