Technical Multipla wiring diagram for becker sat nav

[qplumb]

Hi I'm googled out!:bang: Found your forum wow!a result.I've searched the forum & FAQ for a Multipla wiring diagram I need to fit a becker 7945 sat nav,hands free bluetooth compatible head unit.Any advice or really a wiring diagram showing speedo connections would be great.I love my frog but it will be better with sat nav.Cheers and best regards John