I’ve been fighting to keep mice out of my Gen II Toyota Prius for many years. I blocked the holes under the front cowling with hardware cloth as well as the louvered rear vents. I’ve tried repeatedly applying peppermint oil to the cabin air filter (helps for a little while), and also added hardware cloth to the bottom of the cabin air filter tray. They were still getting in. The hardware cloth below the wiper cowling up… View More