WARNING: This page is about a different car, the 2007 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Parking Assistant Circuit (1 of 2)
Fig 2: Parking Assistant Circuit (2 of 2)
Fig 3: Rear Camera Circuit, W/ Monitor Preinstallation
Fig 4: Rear Camera Circuit, W/O Monitor Preinstallation