Owner of 05 Boxster and 09 Cayenne, Cayenne has been down since Christmas. Insert key, turn and only get the Porsche logo, it is not turning over or communicating with the rest of the car. After having my two area car specialist look over the problem they cannot figure out the issue. Now at Porsche dealer since Jan.17th, Service say they have never seen anything like this..I suspected the Kessey unit from the beginning. Dealer this week replaced that unit and still not fully communicating. This car only has 48,000 miles and fully maintained like new. Recently had a conversation with the service manager and get he would like no better to have this out of his shop and back to his customer..and still have no idea what is the cause of the problem. I have never experienced a situation like this..if Porsche can't fix it than what? I'm sharing this post for any insight of what happens when the dealers are stuck and what does Porsche do next and maybe this can make a difference in the future.