It depends on your current setup- does the car have nav or not? It would also be easier to help you if you post a picture of the cable you have, the back of your unit etc. Otherwise now I would have to remove my unit, figure out what you're talking about etc. I guess that's why you haven't gotten any prior response.

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'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.