I need some help to configure my GM340 radio accessory connection to a recorder.
Currently I use the rear connectors PIN 7 GND and PIN 11 FLAT/FILTERED RX AUDIO to the recorder, this is working fine. I am able to record te RX voice.

But, for the TX it is not working, I tried to use the PIN 5 FLAT TX, it seems nothing is on that pin.
Can someone help me?
I am able to use the CPS so I can make changes if its need!
Thx:Peter