+1 I did the same.
As a tip for the process, if you want to drill through the wall, use a large nail and heat it with a
lighter or torch. At the spot where you want to drill, use the hot nail to push through the plastic wall into the wall.
Use pliers to hold the nail, don't burn your fingers. It should go through like butter...unless it is metal. Once
through you should be able to feel with the nail if there is any coolant line there or just insulation. The pressure
needed to push the hot nail through the plastic will not be enough to puncture the collant line. Once through and
checked for an open spot, drill. Thay way you dont turn a nice kegorator into a huge paper weight.