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It only works if you have a Euro Comand unit, it basically unlocks the DVD in motion. The US models only have a CD in the comand so it won't work with you unit.

 

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Yes as they all do, but thats a DVD base in the trunk, I'm referring to the actual head unit up front. You can try it but the DVD rom in the trunk will not play DVD's.
Trust me I'm speaking from experience. I have the PDF that they are selling, I used it to unlock my Euro unit so I can watch DVD's while driving.