Updating the Software as Part of a Garmin Network Update

If the stereo is connected to the same Garmin BlueNet™ network or Garmin® Marine Network as a compatible Garmin chartplotter, you can perform a network update on the chartplotter to update all of the connected Garmin devices and Fusion Apollo™ stereos.

NOTE: A stereo must be running software version 6.20 or later to receive an update over the network. If your stereo is running an earlier software version, you should disconnect it from the network and update it using a USB flash drive before reconnecting and trying a network update.
NOTE: If you have one or more NRX remote controls connected to the stereo, they are not updated as part a marine network update. You must perform updates to those devices individually (Update Options ).
  1. If needed, go to garmin.com/manuals and locate the latest version of the owner's manual for your connected chartplotter.
  2. Select an option:
    • Use the ActiveCaptain® app to initiate the software update.

    • Go to garmin.com/support/software/marine/ to download the latest marine update .

      NOTE: If you do not use the ActiveCaptain app, you must download the update and install it using a memory card on the chartplotter.
  3. Follow the directions in the chartplotter owner's manual for performing a network update.

    The software is updated on all of your connected devices, including the stereo.

NOTE: Depending on the capabilities and software version of your connected chartplotter, it may not include this stereo in the Garmin network update until after the chartplotter is updated to a more-current version. If the stereo is not updated after the network update completes, try performing the network update again. If the stereo is not updated after the chartplotter is up-to-date, perform a manual update on the stereo instead, using the Fusion® Audio app or a USB drive (Software Updates).
GUID-2BF6BEB7-4CE7-4804-9935-F0D912E72FA7 v4
January 2026