AP74 audio

[19fx57xl106]

I have a D180 an AP74 and a GTR200 Garmin and am connecting everything up. The D180 install manual page 8-5 shows the center terminal of the variable resistor going to the intercom/audio panel auxiliary input. Where is this in my system?

 

[Dynon]

You'd use one of the available audio inputs on the GTR. Looks to be either pin 32 (with pin 31 for audio ground) or pin 9 (with pin 28 for audio ground)

 

[19fx57xl106]

Thanks guys