Had this in my 2004 cayenne with nose System. Best interface to connect to factory nose system with any aftermarket radio.  


___________________________________

The MOST-H.U.R. (Head Unit Replacement) allows the user to install a feature-rich aftermarket radio while retaining the factory amplifier and converting audio signal to the factory fiber optic system. This is the fastest and easiest way to upgrade sound quality and features without performing “major surgery” to the vehicle. The HUR module also provides Vehicle Speed Sense (VSS out), 12v Reverse (out), hand/foot brake (out) and Illumination (out) for convenience.

___________________________________



See link below at bottom of page for compatibility and details. 


Fits: 


Model Year Range Version Radio Notes

Porsche/Cayenne Turbo 2003-2010 USA, Rest of World, Europe PCM2, PCM2.1, PCM3

Porsche/Cayenne 2003-2004 USA PCM2, PCM2.1

Porsche/Cayenne 2004-2010 USA, Rest of World, Europe PCM2, PCM2.1, PCM3

Porsche/Cayenne 2005-2008 USA PCM2, PCM2.1, PCM3

Porsche/Cayenne 2005-2008 USA, Rest of World, Europe PCM2, PCM2.1, PCM3

Porsche/Cayenne 2009-2010 USA, Rest of World, Europe PCM2, PCM2.1, PCM3



Google Most HUR 955 nav tv for more details.