Originally Posted by papa_lazerous
The ground connection is common so that's okay but your servo runs on 5v. I don't know if this is the case for the airspeed sensor. Maybe it is 3.3v to be safe why not use the spare pin in your connector and run another wire so you know it is okay.
Forgot to add that i want to keep that spare pin in case I want to add flaps later. The other wing will have one of these plugs as well for its servo and the video tx.