Quick search turns up the same thread someone else posted that I listed the VO code to add:
http://www.e90post.com/forums/showthread.php?t=619973
If you are trying to start coding just to do this, I would possibly recommend to find a local coder and just have them do it unless you have a good amount of time and patience to learn the process.
Info is all in this forum. Just search and research.