bmw professional CD73 radio

[Vittoria]

Hello,

please can I get scheme(mostly: radio display type controller) or the display controller protocol of bmw professional radio ?
Details:
manufacture: Alpine (made in Hungary) Model no: CD73
P/no: 65.12-6971703
S/no: AL900150465463
SW: Audio 94.53.01 KW: 14/05
GW: 05.16.00
HW: 6952294 AI: 02
BMW-Nr.: RA697170302W

I have opened this topic in "Equipment Repairs" category in case of wrong insertion.

Many thanks for yours kind support !!!!!