WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Audio System Navigation Circuit Diagram - SYNC (1 Of 3)
Courtesy of FORD MOTOR CO.
Fig 2: Audio System Navigation Circuit Diagram - SYNC (2 Of 3)
Courtesy of FORD MOTOR CO.
Fig 3: Audio System Navigation Circuit Diagram - SYNC (3 Of 3)