Thanks, you'd be surprised at how easy it is to fly using the doors, windows, etc. Basically, anything that will upset airflow can turn the A/C. Think of how much your trim tabs affect the attitude of your A/C. I imagine you are referring to a piper super cub, since the doors don't open like a Cessna. Remember driving down the road with your parents when you were a little kid? Try holding your hand(s) outside the cub, then create drag. You'll be surprised at how much you can steer with just your hands. Same as throttle in/out controls your pitch, and leaning front to rear or side to side will affect the A/C's direction of flight! These are worth practicing in the event you have major control surface failures. It can mean the difference between landing or becoming a lawn-dart! The camera I use is the NFlightcam with GPS. It has a built-in cable that connects between the headphone jack and the A/C audio panel. The quality of audio has more to do with your radio than it does with your headset.
Hope I was able to sufficiently answer your questions. BTW, sorry I didn't respond to you earlier jtmccusker, I wasn't notified that anyone posted a response to my video until after awesam did.