98 jeep grand cherokee loredo door locks

Yes, you will need 2 relays for those doorlocks. It is a five wire setup. On the relay pins 87 and 86 would go to constant 12v, pin 85 would go to lock/unlock output wires from alarm, pin 87A would go to vehicle switch side, and pin 30 would go to vehicle motor side wire.

Actually you will need four relays not two. My bad. Just because you will have to go into both front doors for the locks.

And here it is directly from DEI for Jworm!

Use ORANGE / purple for lock and pink/black for unlock at the drivers door switch to operate the drivers door lock. Use BLACK/ white for lock and pink/black for unlock at the passenger front door switch to unlock all passenger doors. It is required to interface in each door even if the vehicle is equiped with keyless entry.

JWorm idea is much better, get the 455T Databus module.  Its on ebay right now for under $30.  Its way worth the money! Its just a 2 wire hook up to the car at the OBD connection under the dash.  While they are both correct in what they are saying, you got to ask yourself, how much is my time worth??  I mean, a mere $30 will save you all the time of pulling off the door panels(2), running wires through the door jamb(twice), and the complexity of wiring  5-wire relay doorlock(in each door). Plus you can make most of your connections between the alarm and the 455T in your house before you even start the alarm. This means the actual install goes much faster! Here are the instructions to lock at for the 455T:

http://www.directeddealers.com/manuals/ig/accessories/N455T_04-98.pdf

Goodluck in whichever decision you make,

Frank