void _garminStorage_DeviceAddedEvent(object sender, Devices.GarminMassStorage.DeviceInfoEventArgs e)
 {
     GarminDevices.Add(e.Device);
 }
 void _garminStorage_DeviceRemovedEvent(object sender, Devices.GarminMassStorage.DeviceInfoEventArgs e)
 {
     GarminDevices.Remove(e.Device);
 }