1992 NA Nissan 300zx

Hi, I'm having a little trouble installing an aftermarket alarm and remote start system in my NA Nissan 300zx.  I have a basic knowledge of car electronics; I installed my own car stereo and an amp and subs so I know how to run wires and such and I understand the concept of grounding.  However, I do not understand the locking system in my car, as there is only one wire.  Which of the three diagrams do I use?

Secondly, I do not know what either the door trigger input or the window module output is or where to find them.  And finally, what is the high voltage coil the diagram talks about and where do I get it and how do I use it? 

Sorry if I sound like a noob, but that's because I am.  Thanks for any help in advance!

Oh man pics don't show up...go here http://photos.yahoo.com/bc/bpoppe4/lst?.dir=/Alarm+Install Thanks again!