Thanks for the reply.
Ok I'll check the connection again but here how it is connected right now..
Pilot PTT is connected to Pin 10 of the Intercom
Pilot Audio Mic to Pin: 23
Copilot PTT to Pin:16
Copilot Audio Mic to Pin: 3
It is possible that I may have reverse the connection..
The rest of Intercom function appears to work ok as far as I know..
I'll have a look next time I'm at the hangar which will be in a few days as we are freezing here right now...
It was snowing today and temp were around 30 degrees...Kind of coolish even by Canadian standard for this time of year.
I'll let you know how it goes..