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Sergio CastilloJul 31, 2025
What to do if there is no audio output from my Garmin GDL 69/69A GDL 69A?
- TThomas NguyenJul 31, 2025
If you're experiencing no audio output from your Garmin GDL 69A Receiver, here are a few things to check: * First, make sure that your unit is a GDL 69A and not a GDL 69, as the latter does not have an audio feature. * Verify the wiring of the audio suppression input, ensuring it's correctly connected to the active high or active low input sense. * Check the wiring from the GDL 69A to the audio panel. * Confirm that the 'Mute' function is not enabled. * Try increasing the volume by pressing the Volume Up button. * If audio is only outputting on Channel 1, verify that your audio XM service has been activated.