I once had a mouse chomping on a power bar in the middle of the night that woke me up. I shined a light on him and he vanished into the dashboard. Half an hour later, he was back, only to vanish again as I attempted to catch him. I never did figure out how he got in though, but fortunately he gave up and no damage was done. Putting screen over the air box is about all I can think of to keep them out of there, or perhaps a rat trap? Some areas of the West coast have problems with Otters climbing into exhaust hoses on boats and chewing holes in them, resulting in the boat flooding and sinking. Even worse, most insurance doesn't cover it. You will see a lot of boats with screens over the exhaust. Good luck.....
Agile Ride improvement package