After a recent water damage headache rats causing thousands of dollars damage under my home, a friend gave me a bar of of Irish Spring soap to safeguard my prius. Suggestion was to cut it in half and place it under the hood, as rodents hate the smell of it. I just inspected the car, both cabin and engine bay. Didn’t see any evidence chewing or any live critters, but did find a small pile of nest like stuff resting at the bottom of the engine bay. any suggestions as to where to place the soap and how to secure it? I’ve read through rodent threads on Prius chat, but did not find an Irish spring remedy. I would appreciate any specifics. Thanks!