How to store car without rodent infestation?

Yep,I use the Bounce dryer sheets and put them everywhere in the car.Under the seats,glove box,trunk,under dash.I put extra around my plug wires,air breather,for some reason they really like to chew plug wires so I wrapped abunch around them too.I hate the smell of moth balls and refuse to use them.

Yes I,ve also heard they don,t like Irish Spring soap bars as 66340Sedan^^^ mentioned,but haven,t tried the soap.I,ve heard to shave the bar with a knife,so to leave strips throughout the car.