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      07-14-2009, 02:51 PM   #7
scalbert
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Drives: '08 E90 M3, '13 Volt, '08 Ody
Join Date: Feb 2007
Location: Woodstock, GA

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There is data in the main connector that identifies the unit as well as stores the VIN you have connected to. It isn't just a cable, it is a cable with storage and encrypted data.