Car Alarms: 1990 240SX Alarm Power Lock problem, negative pulse, door locks

Question
I installed alarm in car with just basic features everything works except the unlock of the doors.  The info i got from every place i searched said to wire a relay, and another place said to wire two relays I tried both with no luck.  The alarm itself has a green and a blue wire for locking and unlocking the doors.  The car has only one orange/black wire that controls the locks.  I am not sure how it works.  I would appreciate any suggestions, and diagrams Thank You

Answer
It's Nissan's single wire door lock system.

This is one of the three known systems Nissan used in early production. To operate, open(cut) the org/blk wire and the doors will lock, pulse the same wire to ground and the doors unlock.  The other two systems are negative pulse (orange/black for lock and orange/blue for unlock both at the door lock timer in the passenger kick behind the ecm.) and non-centralized - add actuator in drivers door.

POWER LOCK|orange/black*  |TYPE F  |driver's kick panel
POWER UNLOCK|same wire *  |TYPE F  |driver's kick panel

You will need relays. See Type F door locks
at www.RELAYHELP.com .

Omce done, the locks will work just fine.

Have a good night.

ALARMTEK