I can almost GUARANTEE the Code Alarm is the ONLY alarm that will let you use the factory keypad AND factory keyfob to arm and disarm the alarm. Again, this is why Ford only uses Code Alarm.
You can read more here:http://www.kcautosound.com/faq.php?q_id=1
He is a great guy and is one of the only ones that I have seen that knows how to wire for the factory keypad. His prices are good and his service is second to none! Currently, these units are on sale on his website.
There are a MILLION wires on this unit and if you order it "custom pre-wired" as he has it on his website, it should cut your install time IN HALF!
BTW, I purchased mine from somewhere else on closeout, but learned the hard way that they were a "gray market" business. Because of my cheapness, there is no warranty (even though they said there would be).
This guy helped me out at 1am on a Saturday night, even when I made the mistake of getting the unit from some shady dealer! How's that for customer service?
As far as sensors, yes, it has the shock sensors and door sensors. You can also hook up other sensors like glass-break sensors, etc.
Give him a call and he will take care of you for sure!