We have a problem with kangaroo rats and mice.
https://www.amazon.com/Tomcat-Repel...p;hvtargid=pla-4584276309324475&th=1you can get it by the can or gallon.
I leave the hood of my ATV open to the light and the wires exposed. I then liberally spray this on the wiring harness and around the surface. I/ve been doing this the last couple years everytime I leave my lease (about once a month). I've not had a problem since.
I also spray it in my camper.
Seems to work.
Best,
GWB