I open the rear seat DVD (thanks rdenis)
and I found in the left two connector, one little (aux input) and one big (same D6) without connection.
in the left I found the D6 connector
In this connector only four terminal are connect.
I wired the terminal 14 (if correct?)
after I have open the MMCS, in the rear and I found the connector C-10
and I have wired this with the D-6 connector
I went to the hidden service menu on the MMCS head unit and I selected the option "Network/Line Check" but the Rear Seat Display is always N/A et change the "Premium Audio"
In this image the check whitout wire (before you wire)
after wire change only the Premiun Audio...
It's all. Why don't change? The wire are correct?
and... what's this connector???