I just took delivery of an 08 without the factory Sirius. I want to install my Sirius receiver and it appears that there is a factory installed satellite antenna on the roof (mini shark fin). Do these cars come pre-wired with the sat. antenna? And if so, does the antenna wire go the the radio or does it terminate were that factory Sirius receiver resides? If so, were would that be?
Or, is the shark fin just there to add stability