We found an oval opening near the base of the column that supports the mast inside the cabin. The hole is on the side of the column that faces Starboard (under the forward seat of the dinette). The antenna wire was routed up through this opening. The task now is the fish the wire up through this opening into the mast above. the plan is to use fish tape or pull a lead wire up that is attache to the antenna wire. We are really hoping we don't have to step the mast.