[Zormecteon]

just did mine as per instructions in another area of the forums...to make it short..

with the car off, climb in and shut the door...
push on the brake pedal and release. ...
hit the starter button (without touching the clutch) FIVE times.... that's on, off, on off, on..
push the brake pedal and release
turn the car off.
then hit the starter button 5 more times.. on off on off on...

the horn will sound saying your in programing mode....

go to the drivers side front tire, get close to the valve stem and use the tpms device button.. the horn will sound.
passenger side front.... horn will sound
passenger side rear..... horn will sound
driver side rear............. horn will sound.

you're done.

 

[Zormecteon]

I got mine from Tire Rack when I bought the wheels and tires... there are probably other sources...I see Amazon.com has them too..http://www.amazon.com/Motorcraft-TPMS19-Remote-Pressure-Sensor/dp/B001FKSNUI