Fire caused a by short-circuits can be prevented by fuse protection of the electricity. We have seen it enough, all electric appliances installed in your Volkswagen (or any other car/motorcycle), should by properly protected, such as USB chargers, GPS, cigarette lighters, radio or any other HiFi equipment, just name them, this loose fuse holder can be helpful and isnt even expensive. We like to contribute to your security as well as of your passengers.