"Which connection spot is the Channel 7 input.  I am actually using a Crius AIOP which has Aux 1-4 inputs.
Normally, channel 5 for the flight modes are connected to the aux 1 and the channel 6 to the aux 2.  I guess it would be aux 3.
Thanks"

"I have APM but connected to 6 channel receiver.  Radio 9XR.
I want to use the autotune but mission planner only access on channel 7/8.
Currently have Channel 5 for the flight modes.

Any way to setup APM connections, 6 channel receiver and the…"