My friends 2008 Honda Fit had the exact same wire eaten by a mouse - we caught the mouse in the glove box with a mouse trap. It is not a warranty fix, it is an act of nature not covered. The dealer fixed it for the cost of the parts as good will (and they were curious as to what did that). We also caught 4 mice in the garage where the Fit spends the night. The mice also ate most of her Honda manuals or used them as the bathroom, in the glove box. We think they came in the cracked window that is left open to air the car.