You will have a hard time finding this info
It proprietary they don't leak it out .(programming some of the engine tuners
know a lot about that portion but I doubt the anybody else has reverse engineered
the entire operating system for the car and all the sub variants of it as there aren't
that many people that would be interested.)
The two boards I mentioned are the most information and DIY
oriented boards I have found .
For comfort access there is actual hardware installed in the car so you might look
at some DIY's on retrofitting it, if you can find them.
If you are interested in changing things that exist in the software that can be turned on and
off go to the coding board they have a master list of what can be changed and what can't
and tell you how to enable those features if possible.
It requires some due diligence and studying.
Last edited by ctuna; 01-20-2013 at 05:54 PM.