Here's a post if you really want to make your own AUX: http://www.xoutpost.com/x5-e53-forum/...cable-diy.html

The port is only $39 from BMW, factor in your time also to see if it's really worth replicating.

__________________
Tom G. | european auto source (eas)
email: [email protected] web: www.europeanautosource.com
tel 866.669.0705 | ca: 714.369.8524 x22 | fax: 714.908.1796

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