Siren Marine External GPS Antenna f/Siren 3 Pro Includes 10 Cable

External GPS Antenna for Siren 3 Pro Includes 10' CableOptimize GPS tracking of your boat with the External GPS Antenna. When you remotely mount the External GPS Antenna, the Siren 3 Pro will override the use of the internal GPS antenna.*Compatible with the Siren 3 Pro ONLY .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }