US Patent 7174173 Location-based vehicle messaging system

A system may enable vehicle operators to request information automatically along the route of travel by transmitting information requests, tied to the vehicle's current position, to a server. The server may store a plurality of informational files associated with particular global positioning system coordinates. Upon receipt of a request, the files associated with a particular position may be located and transmitted to the vehicle. The files may be stored as audio files so the user may listen to the files without being distracted while driving the vehicle.