What's on the other side of the fridge (and partition wall)? Maybe there is or could be an access panel there.
Before doing any overly invasive surgery, I would try pulling the electrical panel or whatever it is underneath the fridge out. It may or may not not have enough slack, but the easiest way to tell if it does is to try pulling it and seeing what happens. Coachmen was kind enough to leave sufficient slack in the wires to pull out the electric panel in my RV, but then again they were generally pretty good about allowing for reasonable access to systems for repair and maintenance.