Hello... I have an 05 Cayenne with Bose and PCM (1st Gen) with Navigation system. Does anyone know if there is a better alternative to upgrading ($4100) to the PCM 2.1 or just getting an aftermarket Nav system that will accomodate the Bose and the fiber optic issues. I am not too keen on the Porsche's nav system and am a bit of a gadget girl so if there is something more "gadgetty" that also has a bluetooth capability for my iPhone and will work with the Bose system and the fiber optic harness hurdles, please let me know the make and model of the system.... I dont really like the PCM as it is and really require the bluetooth capability... please help.