Where is the speed sensor wire on a 2002 ford excursion you are putting in a gps radio?

On a 2002 Ford Excursion, the speed sensor wire is typically located in the vehicle's wiring harness near the speedometer or the transmission. You can find it by tracing the wires from the vehicle's speedometer or accessing the transmission connector. The speed sensor wire is usually a light green/white or yellow wire, but it's advisable to use a multimeter to confirm its function before connecting it to your GPS radio. Always refer to a wiring diagram for your specific model to ensure accuracy.