hello, I own a Porsche cayenne S 2004 and it have been causing me so much trouble. the car has a immobilizer active when I switch the key to turn on. no light come on, no crack, just the " immobilizer active". towed it to a Porsche dealership and they got me a new key ordered online. when the key arrived, Porsche cut the key for the car but they said that the key wouldn't program to the car because some sort lacking communication between key and car even though the key is brand new from Porsche. Porsche now is recommending for me to allow them more hours of inspection to the car to diagnose the problem which will be very very expensive. I want to know if anyone had this problem before I waste plenty of my money. I do not know what else to do and I read plenty of articles online where this problem is common. need help from anybody!