Garmin GTN 650 to Garmin 245 audio panel

[/url][/IMG]
Good afternoon!
Since there are no numbers on the installation diagram I'm assuming that I need to find pin (com 1 audio out Hi) on the GTN 650 to connect with pin 9 (com 1 audio in HI) on my Garmin 245 audio panel. Makes sense to me, what say you?
Thanks!
SteveL

Garmin GTN 650, P1003

Pin 5 - COM MIC AUDIO IN HI (INPUT)
Pin 7 - 500 Ohm COM AUDIO HI (OUTPUT)
Pin 11 - COM MIC 1 KEY (INPUT)
Pin 18 - 500 Ohm COM AUDIO LO (--)
Pin 20 - MIC AUDIO IN LO (INPUT)

Cheers!

B

Thanks Brian! Back at it.