Thanks for keeping this exciting option in mind.
I have a full size cockpit as well.
With P3D V4 we are fortunate that it provides the audio split option. For me, any ATC comes out of my overhead speakers and headphones with any general aircraft sound out of the large speakers behind and the sub-woofers in my two seats.
Presently, I feel the Ground Crew talking out of my …..
Aussie