The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of about 18-24 satellites placed into orbit. GPS was originally intended for military applications, but in the late 1970s
There has been a lot of reported vehicle break-ins with satellite navigations units stolen from the vehicles. This I will say is partly due to the growing popularity of satellite navigation units.
Satellite navigation units make driving a lot easier as they hold digital maps and use a network of satellites in space to pinpoint your location and they provide turn by turn directions to get you to your destination usually through audible signals.