How do you program a remote control for a 2005 ford f-150?

To program a remote control for a 2005 Ford F-150, first, sit in the vehicle with all doors closed and the key in the ignition. Turn the ignition on and off eight times within ten seconds, ending with the key in the "on" position. The doors should lock and unlock, indicating the vehicle is in programming mode. Press any button on the remote to program it, and the locks will cycle again to confirm successful programming; repeat for additional remotes.