Brief Description: EFIS and Intercom troubleshooting
I again attempted to get the 696 GPS to display on the EFIS and although the book said to select NMEA/AVTN for the serial port, I put in NMEA 4800 and it came on - ta da!
Then I started working on the rear microphone issue. I did some simple diagnostics and then I pulled the intercom out so I can verify the pins and the harness are correct and all the wires are going to the correct spot - fun!
Here's the admin page where you program the serial ports for the various inputs