Car Alarms: 1995 Mazda Protege, fuse box, mazda protege

Question
I try to install my alarm and I have some problems connecting it to the door locking system. I have to find door lock and door unlock wires.I think I've found the unlock one(when I touch the ground unlocks the doors), but I have difficulties finding the lock one. Also I want to ask you my car has a negative trigger as I suppose?
Thank you very much, I'll appreciate any small advice...I spent already a lot of time with and I've got stuck.

Answer
Unusual system here.
Ok, this is Mazda's single wire negative
door lock system.

You will need 2 relays, wired as negatives,
with the unlock going to the white/blue
wire at the plug in the fuse box, and
another relay going to this same wire using
a 4.7K OHM RESISTOR on pin 30.

This will then allow for
lock and unlock remotely.

Get some relays and finish it up.

Good luck.

ALARMTEK
RELAYHELP.COM