I have a Sony Digital 8 camcorder. All you need is the attenuating
patch cord from Radio Shack. This plugs into the camcorder audio in.
On the other end you need an adaptor so it will plug into the intercom
audio out. Whole deal costs less than $10. Sounds great. Only down
side is there is now no engine noise on the tape. To secure the camera
I bought some elastic, comes in a long string. I tripled it up and
attached it to a couple of ring terminals that attach to two screws that
are part of an avionics access panel. The camera sits on top of a
sponge. The sponge lifts it up slightly for a better view out the
window, keeps the camera from moving and also totally eliminates
vibration. Just remember to set the camera to focus on a distant
object, not the nearest thing in front of it.

Bonanza Man wrote:
is there an adaptor that'll take the head-set
audio-out of an airplane intercom into
a jack that can be put into a standard
microphone jack in a video-cam.