Lsapilot Posted October 28, 2019 Report Share Posted October 28, 2019 I recently had a Garmin GTX335 ADSB out transponder installed replacing a GTX330. After the installation I do not hear voice warnings through my headset for "TRAFFIC" and "RADAR NOT AVAILABLE", which I previously did with old Xponder. Installer has no answer. Would anyone know what was changed? The audio connector in back of the 496 is plugged in. I'm not sure which avionics controls aural messages. Hope someone has an answer.. Thanks! Quote Link to comment Share on other sites More sharing options...
MEH Posted October 29, 2019 Report Share Posted October 29, 2019 I would check that the pins are properly wired. If it is like other Garmin products, there is an audio + and - wire. Mistakes happen. Quote Link to comment Share on other sites More sharing options...
Anticept Posted November 3, 2019 Report Share Posted November 3, 2019 The audio warnings come from the garmin gps, not the gtx330 transponder. The transponder just had display flags. Check your gps settings. Quote Link to comment Share on other sites More sharing options...
Lsapilot Posted November 3, 2019 Author Report Share Posted November 3, 2019 I'm aware the problem is not the transponder. The problem originated during the installation of the new transponder. Along with loss of audio I'm not getting power to the GPS. I have to turn it on manually. The auto pilot is not receiving information for the GPS and won't work properly. Also missing is information that should be appearing on the Dynon PFD. l All was working well until the avionics shop got a hold of it. Could it have something do with the data cable? Quote Link to comment Share on other sites More sharing options...
Anticept Posted November 9, 2019 Report Share Posted November 9, 2019 That's a complex issue that needs to be looked at by the installer. For one thing, the settings might be incorrect. Garmin doesn't like to distribute their install manuals for their transponders, which is why you have to take it back to the installer. I also don't know your panel setup. The 496 should have an automatic turn on when external power is applied setting. Again, you really should take this back to the installer after having made a detailed written description of issues you are having. Quote Link to comment Share on other sites More sharing options...
Lsapilot Posted November 9, 2019 Author Report Share Posted November 9, 2019 Issues have been fixed with the 496 not talking to the autopilot. The data/power cable to the 496 was faulty and was replaced. Still no audio from the 496. Quote Link to comment Share on other sites More sharing options...
Anticept Posted November 9, 2019 Report Share Posted November 9, 2019 Find the XM/AUX switch on the lower mid panel. Flip to XM. That's actually"gps audio". Quote Link to comment Share on other sites More sharing options...
Lsapilot Posted November 13, 2019 Author Report Share Posted November 13, 2019 Thank you, Anticept, I'll give it a try next time i fly... Quote Link to comment Share on other sites More sharing options...
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