I'm trying to locate the switches to activate the COMM 2 radio but can't find them. Is this a key only command? Thanks for the help.Jim

Well after 36 views of my question and no answers, it seems that there is no switch function for the 600/700 series. But it does exist on the 800/900 series as someone replied on the general FS9 forum. So to activate the COMM 2 or the switch back to the COMM 1 radio, I needed to assign two buttons on my CH TQ to perform these functions.Jim

Buy the 800/900 add-on instead, you'll get a whole bunch of improvements as well as the comm panel.Seriously.-Tim