Sorry Louis, this is for the MU-2B. I have experience with the PT6A line but this is my first with the Garret TP. How about the beacon light sound? It does become annoying after a while. I tried sound sliders with no change. mjrhealth has a point about the GMA340. Being such a basic controller, it should, at the least have correct comm functions.
Thanks again,
f4sup
Roger