Fairly straightforward procedure requiring uploading the right OS and then the right set of button pushes. A search of "Perspective" in the Navigation Forum should get you the answer in short order.

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2005 X5 4.4 (Sterling on Truffle) w/sport everything
2011 Audi S4 (Prestige, DSG)
2012 Audi Q7 (Sport, S-Line)