GTN650 Comm Radio - Dynon Intercom

[CaptainJS]

I am installing a GTN650 and will connect it to my SV INTERCOM-2S that is already connected to my SV-COM-425. I will ad a switch to toggle between the 2 radios for the PTT button. Please confirm the following wiring diagram, including the use of 2 and 3 conductor shielded wire with the shielding grounded to Pin 1 of the SV INTERCOM.

Thanks,
Jerry

 

[Raymo]

Looks good to me but you omitted the toggle switch from your drawing.