GXM™ Installation InstructionsThis antenna provides SiriusXM® weather and radio to yourexisting NMEA 2000® network. If you do not have an existingNMEA 2000 network on your boat, you must install one. Formore information about NMEA 2000, go to www.garmin.com.Important Safety InformationWARNINGSee the Important Safety and Product Information guide in theproduct box for product warnings and other importantinformation.The weather information provided through this product issubject to service interruptions and may contain errors,inaccuracies, or outdated information, and consequently shouldnot be relied upon exclusively. Always use common sense whilenavigating, and check alternate weather information sourcesprior to making safety-related decisions. You acknowledge andagree that you shall be solely responsible for use of the weatherinformation and all decisions taken with respect to navigating inweather. Garmin® will not be responsible for any consequencesof using SiriusXM weather information.CAUTIONAlways wear safety goggles, ear protection, and a dust maskwhen drilling, cutting, or sanding.NOTICEWhen drilling or cutting, always check what is on the oppositeside of the surface.Registering Your DeviceHelp us better support you by completing our online registrationtoday.• Go to http://my.garmin.com.• Keep the original sales receipt, or a photocopy, in a safeplace.Contacting Garmin Product Support• Go to www.garmin.com/support and click Contact Supportfor in-country support information.• In the USA, call (913) 397.8200 or (800) 800.1020.• In the UK, call 0808 2380000.• In Europe, call +44 (0) 870.8501241.Loading the New Software on a MemoryCardThe device may contain a software-update memory card. If so,follow the instructions provided with the card. If a softwareupdate memory card is not included, you must copy thesoftware update to a memory card.1 Insert a memory card into the card slot on the computer.2 Go to www.garmin.com/support/software/marine.html.3 Select Download next to “Chartplotters with SD card”.4 Read and agree to the terms.5 Select Download.6 Select Run.7 Select the drive associated with the memory card, and selectNext > Finish.Updating the Device SoftwareBefore you can update the software, you must obtain asoftware-update memory card or load the latest software onto amemory card.1 Turn on the chartplotter.2 Insert the memory card into the card slot.3 Follow the on-screen instructions.The software update process takes approximately 2–10minutes to complete. The device returns to normal operationwhen the update process is complete.NOTE: Do not remove the memory card until the device hasreturned to normal operation.Antenna Mounting ConsiderationsYou can mount the antenna on a flat surface, install it underfiberglass, or attach it to a standard 1 in. OD, 14 threads perinch, pipe-threaded pole (not included). You can route the cableoutside of the pole or through the pole. For best performance,consider these guidelines when selecting the antenna mountinglocation.• To ensure the best reception, the antenna should bemounted in a location that has a clear, unobstructed view ofthe sky in all directions À.• The antenna should not be mounted where it is shaded bythe superstructure of the boat Á, a radome antenna, or themast.• The antenna should not be mounted near the engine or othersources of Electromagnetic Interference (EMI) Â.• If a radar is present, the antenna should be mounted abovethe path of the radar Ã. If necessary, the antenna may bemounted below the path of the radar Ä.• The antenna should not be mounted directly in the path ofthe radar Å.• The antenna should be mounted at least 3 ft. (1 m) awayfrom (preferably above) the path of a radar beam or a VHFradio antenna Æ.March 2014 190-01636-02_0B Printed in Taiwan