I know the topic of rodents causing problems with the Prius has been brought up many times on priuschat but I cannot find the exact information I need when doing a search. A few times a year I clean out nesting created by mice in area adjacent to glovebox where cabin filter and a squirrel cage fan are. After I clean it out they just come back. What I want to know is this - where exactly (and how) are the rodents getting in? And how can I block their entry on my 2012 Prius V so they cannot get in?