was camping with a guy on the weekend who likes to tinker....so much so that he built his own car fridge out of some old water cooler's he picked up off the side of the road. anyone want to put in an order for one?
You can buy the Engel ice box conversion from engel with the compressor and lines etc, everything you need to make your ice box into a fridge.
It does cost a bit more than the side of the road special though at $900 Engel Website
I purchased a mini bar fridge. I run it off the inverter when rolling and generator at camp site. Fridge has been bashing around in truck and trailer for year and still works. 180 USD and what I like about it is the size and it has freezer section.