05 escape auto lock/unlock

Can somone who has knowledge or done this tell me how and what I need to install auto door lock/unlock on my 2005 Ford Escape.  It has factory keyless entry only no alarm.

I am assuming I may need2 reelays?  any diagram on how to wire these would be appreciated.  I understand the pink white to be the lock and the violet/white to be the unlock.

Thanks in advance.

No,  no aftermarket system.

For instance, my wifes Expedition automatically locks the doors at say 10 MPH and unlocks in park.  The Escape does not do this but I understand that by using a relay or 2, you can add this auto lock unlock feature.  They both have the FordKeyless entry.

Thanks

Thanks, I just used the speed thing as an example, the in and out of park will work.

Will look at thanks!

OK I need to ask a real dumb question here:

These ARE new relays I add correct, they are not existing ones?

Thanks

I found this on a se4arch here, it looks like what I need but I do not know what the line is at the bottom of the diagram where the 2 blue wires connect:

http://bulldogsecurity.com/New%20Wires/New%20Wires/Wires/images/fordmazdalocks.htm