And wanted to see where would be the best place to have the co2 come in. It is a mini fridge ge WMR04BAPBB it looks like on the side in the corner closest to the front would work. Any other places?
Ever the contrarian, I'm seeing two lines that connect to the cold plate, and unless they're running inside the liner they're running up the back wall...
I have a similar GE mini fridge. I went thru the back. The plastic on the inside is soft enough to cut with a sharp knife, so you can carefully remove styrofoam to be sure.