What Acuator to use?

I've got a 2-door car with central locking, when you unlock the drivers door with the key it also unlocks the passneger side. I'm am guessing the passenger side already has an actuator that is activated when the driver door is lock or unlocked.  That means I only need to put an actuator on the drivers door for the alarm to unlock and lock both doors right? I've got this 4-door kit where there's three 2-wire actuators and one 5-wire actuator. I've read from past posts that you only need the 2-wire actuator hooked up to two relays. Is that correct? How can I use the 5-wire actuator or isn't that needed?

Thankyou for any help

You might as well use one of the 2 wire ones and save the five wire one for another car.  Does the car have a lock.unlock button/switch already?  If so, then just add one of the 2 wire ones to the driver's door (easier to wire up).  Use two 5 pin 30/40 amp relays and this diagram and connect it to the door lock output from your alarm.  I recently did something similar to my cargo van only i used three 2 wire actuators and also added a switch along with the alarm.  Worked out great.

Duane...

If you think you're confused, imagine how you feel.   

On the driver's door there's a lock and unlock button to control the passenger door, is that what you're talking about?

Thankyou

it's going to be put in a 1989 sklyine r32