I already have everything up and running. But getting this rear entertainment system to work hasn't been easy for me. I've followed the directions on this form that was left by stuartjohn24 but still not working. I've been through the wiring with WDS numerous times and still no luck. Maybe you can tell me what modules need to be coded? I only know of the mmi and the mmif.
For coding in general. I would HIGHLY recommend going on ebay search for "NCSexpert INPA" Buy the cable and software from the one located in Romania. Once you have that installed and activated. ( you just need to send a message to ebay seller to activate ).
The forums and online have basically every thing you need for INPA/NCS. I've done nav installs and rear entertainment for a friends 7-series with INPA. And it was as easy as pressing "add, yes, accept"