Iluminated entry on a 92 Accord?

Well, I read through the vehicle information, and I'm still pretty confused. First off, does this have a positive or negative door triger? By door triger, we don't mean the door lock signal, but the door opened signal right? Meaning that it simulates the door being opened and turns on the light??? So when you look at the relay diagrams on the site here, you're hooking up power and signal to the security controler (or whatever we call the 'unit')  and the ground or hot dependant on the type of system you've got, and the other line goes to where ever the door open trigger connects to?

Not sure if I'm making sense, but I think I understand conceptualy, but want to make sure .

Also, I'm not sure what the vehicle identification table is telling me. There are no headers so I just want to confirm what it's saying; column one, 'item name', two, wire associated with it, Three, where the wire is. ??? Is this correct?

Lest question (don't believe that for a moment! :) where does one get a relay? I'm sure I could find a gross of them on the internet, but if I need one, where can I get one??? Thanks as always!!

Mick