Owner's Manual
Page 31
... can purchase additional MapSource map data from Garmin and download the maps to your unit ID (see page 18) and serial number (see page i). Purchasing Additional MapSource Maps You can use the USB cable when updating your SD card. Use the Garmin USB cable provided to connect your c320 to your map data, updating the c320 software, or loading...
... can purchase additional MapSource map data from Garmin and download the maps to your unit ID (see page 18) and serial number (see page i). Purchasing Additional MapSource Maps You can use the USB cable when updating your SD card. Use the Garmin USB cable provided to connect your c320 to your map data, updating the c320 software, or loading...