Experienced with Mercedes wiring

1998 190 E 2.6My customer is really looking for the remote lock and unlock feature My first question is do I have to hock-up everything??Let me say this first. This alarm has some weird features.1.       It has a high gain antenna2.       It has a emergent release/code-learning switch 3.       It has a foot brake trigger 4.       and a High Voltage coil interrupt relay .I Know she doesn?t wont this feature It has a white wire going to one side of the acc switch, comingOut the other side is a positive wire going to the + side of the coil it wants me To cut this wire and connected it to a relay. From the relayWe have 12+ volts out from the relay side. We have relay to hight coil positive side Relay to the other side of the acc switch and relay to the main controller to finish the loop. ( I have no I dear what to do with this ) I ALLSO in both front doors There are two separate door trigger switches how do I know witch one to hock up to??? Thanks  Mark

And You might, as an amateur. Want to consider going to the rear module where the pump is. This will solve any problems you might run into while "testing" wires in the door sill area. Just as a little funny side note. One guy i worked with found a wire that went dead when the door was unlocked, and Positive upon locking.. naturally, being an old schooler. He took a 3 amp fuse.. and a wire..=) not a second later.. BAM 12volts sent through.. airbag goes off=) this wire obviously went from the door locks to the air bag, seeing the door was locked enabled the air bag system on (doors locked when driving) Cute little 5000$ loss.