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Old 08-02-2010, 05:45 PM   #4
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Join Date: Oct 2009
Location: UK
Posts: 1,030
My Ride: 1999 328i
The two 10 pin plugs are for the BMW cd changer and other stuff. The steering wheel controls come via the ibus which is on the 17 pin plug. Google Images for BMW 17 pin to see what connections go where.

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