Corrected GPS provider Garmin’s stock jumps . premarket on earnings beat, raised guidance. Shares of GPS provider Garmin Ltd. jumped . in premarket trade .Garmin Mapping FAQs. Looking to buy a Garmin sat nav, recreational map o BlueChart map? Want to find a answer to a question that’s not answered on our website garmin .Garmin’s GPSmap C Sx Color Mapping GPS Receiver with AUTOMATIC Routing To ASK SPECIFIC QUESTIONS about this product, log onto the GPSInformation.net FORUM.GPS Visualizer can read GPS data files tracklogs waypoints , street addresses, or simple coordinates, and plot them on Google Maps..