Yea, I did that just hoping someone can verify they hooked 9 to speed pulse and hopeing that 10 or 11 maybe backup signal or steering wheel control signal.

9 / White-Yellow bands / I-bus?
10 / White-Brown / Mute from phone?
11 / White-Green / ?

This is what it shows. There are question marks after these 3 pins. I am pretty sure that 9 is I-Bus but 10 and 11 I am currious about.

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2001 X5 3.0i Silver / Gray