WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Installation Position Of Front Number Plate Cover
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Unscrew fastening screws -1-
and take off front number plate cover -2-
(-arrow-
).