Everybody hates mice. I recently found a bit load of acorns rolling around in my headliner and I could figure out how they got up there. I’ve spent about a month trying to figure out how to keep the mice from getting in my Tundra. I eventually found the they were getting in through the cabin air intake inlet that is located under the plastic cowling at the bottom of your windshield. I asked my local Toyota dealer how they deal with this issue and they recommended that I pick up some chicken wire and self tapping screws and I cover up the inlet. Getting the holes covered is kind of a pain in the ass but if it keeps the mice out it’s worth it. I hope somebody else will find this useful.