From a gearhead friend of mine.
I had no luck with dryer sheets, moth balls, nor Irish Spring soap. Only luck is with Pbutter and spring trap or dunk bucket.Moth balls conquer squirrels and rodents, I've placed them in my engine bays in small plastic mesh fruit/veg bags ty-wrapped to the places they had built nest. No more damage!
They arent unique to this. Most manufacturers are doing this now, so unless you plan to drive something old, its going to be an issue.honda has parts made out of soy beans, going green, after the second time spending $600 to get it fixed, they said they had a spray that they could put on it to prevent it, duh, the honda is history.