- On 2000 Ford Explorers, the tow package should have been pre-wired if the vehicle has the option code Z784
- Check if the Explorer has a 7-pin or 4-pin trailer connector under the rear bumper.
- Look in the trunk for a black or blue wire harness with a connector and a black rubber cap near the right taillight. If you see this wiring, your Explorer is most likely pre-wired.