Originally Posted by jelliott82
My Garmin GTR200 Mic Input / Intercom function isn't working. When I connect my 2x Bose A20 headsets and try to talk to one another there is no mic audio transmitting across the intercom from either headset. Are there any specific settings or configuration I should be setting on either the Bose A20's or the GTR200 / G3X, or should this just work and I need to review my wiring? The wiring was completed as per the wiring schematic in the G3X installation manual .. unless I made an error during the install.
I haven't yet tried the mic while transmitting.
We take it this is a single COM installation with no audio panel. As others have mentioned, the intercom must be enabled in the GTR 200 for it to work. There are some other troubleshooting steps we can work through if the intercom is enabled and not working. The intercom can be enabled by powering on the unit while holding in the inner knob, and selecting Audio Setup.