func (connector *SIRIVehicleMonitoringSubscriptionBroadcaster) handleVehicleLocation(v *model.Vehicle) *siri.SIRIVehicleLocation {
    var lat = v.Latitude
    var lon = v.Longitude
    if lat != 0. || lon != 0. {
        vehicleLocation := &siri.SIRIVehicleLocation{