I agree that was complicated, and I posted it for reference purposes as much as anything else, but there will be cases where one cannot mod a headset lead, and cannot get a plug-in into a headset socket because there are 4 people aboard a 4-seater so no spare sockets.
There is a suprising shortage of good mikes that are small enough and work with a camcorder that has the traditional "PLUG IN POWER" mike input.
The big secret of airborne sound recording is a camcorder which has a manual level control option. Most consumer cams don't, and during quiet periods the AGC winds up the gain to result in a really crap soundtrack. Of course all the pro units have manual level.