WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This procedure applies to all antennas except the sedan AM/FM antenna, which is part of the rear window glass.
Fig 1: Exploded View Of Satellite Radio Antenna With Torque Specifications