Found a location for the audio mixer that would allow me to make adjustments without tearing the airplane apart. Made temporary connections to the garmin to check out the audio. So far this thing works great. I'm going to wire the garmin's xm radio and terrain the dynon voice alerts and a zaon traffic system into the audio mixer then to the intercom. The intercom mutes the alerts when the comm or intercom is active but I'm going to install a mute switch.
