Samsung RS265LBBP Cut Wire in Freezer Door

I have an RS265LBBP side by side with water and ice in the freezer door. Ice maker works and fills bucket but ice auger does not dispense ice. After much checking of switch on dispenser, processor board, relays on board. etc., it turns out that one of the two wires going to the ice switch on the door, (the one you press to get ice), was cut. The break is inside the door wall about 3 inches from the top. I am now looking to find how to open the freezer door cavity so I can run a new wire from the ice switch to the top left connector on the freezer door. The front controls are easy to remove by removing one screw. The wiring harness goes through the wall and into the freezer door. Wires exit at freezer door top hinge. The large recessed area where the ice and water are dispensed seem like it can be removed to access the inside of the door but I’m afraid to damage the exterior of the door without some guidance and instruction. The service manual does not show this as a removable part but it clearly is something that is added to the door. Any help?