They should also ask insurance agents which devices can result in discounts on insurance premiums. Add 1 point to your score if you live within 100 miles from an international border or port. The second layer of protection is a visible or audible device which alerts thieves that your vehicle is protected before they attempt to steal it. For example, according to a recent study by the NICB, users of steering wheel locks were four times less likely to become a vehicle theft victim than the average motorists. The third layer of protection is a device which prevents thieves from bypassing your ignition and hot wiring the vehicle.
Some electronic devices have computer chips in ignition keys.
Others inhibit the flow of electricity or fuel to the engine until a hidden switch or button is activated. A third category passively immobilizes the vehicle by interrupting the starter, ignition or fuel. The final layer of protection is a tracking system which emits a signal to a police or monitoring station when the vehicle is reported stolen. Tracking systems are very effective in helping recover stolen vehicles.