I don't have time to do it now becuase I'm at work, but here is a link to the WDS. You can dig out the radio by searching for N9, A112 for the computer, A196 for the screen, A197 for the TV tuner. Looks like hte mystery blck plug connects to the wine nav computer.

This table won't come out well but it's a good start
ConnectorPinNameFunctionColour
X1313 1 30<41ACC Fuse 41 RT/GN
X1313 3 K--BusBus WS/RT/GE
X1313 1 031EGND BR
X1313 9 NAVNF+Nav data 1 GE
X1313 18 NAVNF--Nav data 2 BL/GE
X1312 1 S_RS+Reverse signal BL/GE
X1312 7NAV--BUSNav data 3 WS/BL
X1312 10 F--DFAHLSpeed sensor GE/GN
X1312 11 F--DFAHRSpeed sensor WS/GN

RT Red
SW Black
GN Green
BR Brown
GE Yellow
WS White
VI Violet
GR Grey
BL Blue