Preventing Rodent squatters from taking over airbox

:devil:
For the 2nd time this year I’ve had mice nesting in my ’09 550 airbox. this machine does n’t usually sit for more than 2-3 days without use. yesterday I noticed a water bottle holder that I have tied to rack was shredded. i opened airbox and there sat mama and 1/2 dozen pinks. I evicted them promptly and was trying to figure out what I could do to prevent this from happening again, as a temp I shoved some nylon screening into hole but I don’t want to have to pop the top off everytime I go for a ride. :gcrules: