power door locks with alarm install

I'm trying to figure out how to correctly install a power door lock system with my alarm. The door lock system I'm looking at has a 5-wire driver door actuator, and 2-wire actuators for the other 3 doors.

I have the following outputs on my alarm:

Door lock N/O, door lock n/c, door lock com

Door unlock n/o, door unlock n/c, door unlock com

Priority unlock output

First off, I don't exactly understand how this 5-wire thing works. All the actuators plug into a "brain" that comes with the lock system that I assume is just the relay system described on this site. If I want the alarm to lock/unlock all doors, I can just tap door lock com and unlock com into two wires on the 5-wire actuator, I believe.

However, I'd like to install the priority lock, and in this case the alarm says to wire the door lock/unlock wires to the driver's door actuator, and the priority unlock wire to the unlock wire for the rest of the system.

I'm at a loss as to which wires to tap into... Can anyone help? Btw, here is the system I'd like to use, and my alarm is Alpine SEC-8028:

http://www.partsexpress.com/pe/showdetl.cfm?&User_ID=13044997&St=3959&St2=58049915&St3=55289494&DS_ID=3&Product_ID=9676&DID=7