I feel you frustration .Mice can cause so much damage. For some reason they just love wire,even the copper. My 8400 John Deere tractor had mice in the wiring to the processor . Over 70 wires were ate off. Dealer wanted 15 grand to replace the wiring harness. Three days of repair work later the tractor was up and running. Mice have caused more damage than anything to my equipment. Fork lift wiring . Sweeper air conditioning hose and wiring. It is so bad I put bait in all the equipment. For some reason they just love wiring. I just hope it gives them a quite indigestion .