Morse Code Signal

[KMan]

It seems that you have NAV1 audio enabled in the A2A Audio panel, right above the TDS GTNXi.
By pressing NAV1 on the A2A Audio panel, you will not hear the morse code, from what it looks to us, the A2A audio panel always has priority and overrides TDS Audio Panel settings.

Thanks, I'll give that a try.  

That's it, solved the problem. Appreciate the help.