WARNING: This page is about a different car, the 1997 Mercury Mountaineer, 1997 Ford Ranger, and 1997 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Remote Keyless Entry System Wiring Diagram (Explorer & Mountaineer - 1 Of 2)
Fig 2: Remote Keyless Entry System Wiring Diagram (Explorer & Mountaineer - 2 Of 2)
Fig 3: Remote Keyless Entry System Wiring Diagram (Ranger)