I am in no way an expert electrician or an expert in refridgeration. Conduct this build at your own risk. Have fun and be safe.
So here we go:
First I bypassed the thermostat according to Ingchr's post
2) Cut the tabs off the back of the 1 gang low voltage bracket this will allow it to fit perfectly under the built in thermostat control of the fridge(Pic1) Then clean up the side of the orange bracket. I used a box cutter
3) Cut a square the size of the STC panel in the solid face plate. This was the hardest part of the project for me. I used a box cutter to score it then I used anything I had to cut it out. I would recommend a dremel. (Pic 2)
4) Screw the face plate on the orange box with included screws. (Pic 3)
5) Remove the thermostat box/ light attachment on the top of the fridge. This is simply unscrewing two screws under the box. Pull down and toward you and it will come right off.
6)Unhook the light. Pull the white thermostat straight off and unscrew the thermometer. Remember where the wires where that you pulled off of the thermostat so you can put it back on. The whole black thermostat box will separate from the fridge. (Pic 4 5)