How do I fix my Porsche cayenne sat nav?
I have a cayenne 54 reg with a PCM 2 sat nav unit.
When I start the car it is a funny grey/ blue colour but as it warms up it returns to normal eventually. Also if I press the screen repeatedly it sometimes sorts itself out until the next time I get in the car.
Can I get a replacement screen anywhere or repair this one?
Steve Pinkerton. In Manchester, August 2011
