July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Section 195 (System Wiring Diagrams): Navigation
WARNING: This page is about a different car, the 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Parking Assistant Circuit, W/ Front Parking Aid Circuit
Fig 2: Parking Assistant Circuit, W/O Front Parking Aid Circuit