About two years ago a guy hooked up an alarm and a set of door locks into my 95 Civic DX coupe. The alarm is a hornet, and the door locks are these: http://www.partsexpress.com/pe/pshow...number=330-010
(on a side note, I can't believe that bastad charged me $150 for the door locks alone, they are $4 each, grr). Anyhow, these door locks are only activated by the alarm remote control and when I turn the car on and off. He never installed a switch on the door and I am thinking about hooking one up myself. I'm not sure how to do it. To my understanding, the pulleys are somehow hooked up to the alarm, which sends power to the pulleys when I press the button. How do I get a separate switch to send the power to pulleys?

Also, I understand it reverses voltage to push/pull. Does it mean that my switch will have to reverse both phases or just send either positive or negative voltage on one phase and the other will be fixed? If so, is it fixed with positive or negative?