WARNING: This page is about a different car, the 2001 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Radio Circuits, Base
Fig 2: Radio Circuits, Premium Radio W/ Rear Entertainment Center (1 of 2)
Fig 3: Radio Circuits, Premium Radio W/ Rear Entertainment Center (2 of 2)
Fig 4: Radio Circuits, Premium Radio W/O Rear Entertainment Center