there are TWO versions of the key pads...
one BOLTS to the door, the other one is a stick on version
(basically the stick on version is nothing more than a key fob
remote w/ numbers on it).
sometime after 2004 or 2005 ford began offering the
stick on keypad as an ADD-ON, to any car or truck
that had a remote entry (key fob) system.
the version that bolts to the door is powered by a
wired/electrical connection. The bolt on version does
not send an RF signal to open the doors (like a key fob
would).
the "STICK ON" version used to be about 80 bucks direct
from ford (batteries may not be included, but are required
since its not a wired system).
Thanks, Bushpilot. I've got the bolt on's, but it seems like their getting "tired".