Well... this would be a good start:
http://www.innovationfirst.com/FIRST...nout_Guide.PDF
Also, check out this thread:
http://www.chiefdelphi.com/forums/sh...threadid=16002
It contains instructions on how to do the above with a single switch.
If you're looking for power information, beware. Trying to power the OI through the competition port is a dicey proposition at best, and there is no official documentation on doing so. Pin 1 is the OI power pin, but I would be VERY, VERY careful with that. Doing that would almost certainly void your warranty. Building an autonomous dongle is very easy (you can do it in 45mins to an hour), and it will get you auto, disable, and channel select. I would stay away from powering it, though. It's much safer to just use the provided AC adapter, or if you're ambitious, a
battery.