Has anyone found a dependable was of keeping pests out of your trucks while in the bush? I have a small jammer every time I see one pop into my engine bay. Ultrasonic repellant? Coyote urine? Moth balls? Dryer sheets?? I will lawfully shoot a coyote and drag it around my parked truck at times to help. I have a GMC canyon and I know the Toyotas also have soy based wiring insulation.