alarm in oldsmobile 98 touring sedan

i'm obviousely a newb and so i have this question. where am i to locate my stock receiver in the car?  i dropped down my glove box and found several small boxes. none have 12 or so wires going to them, mostly only six.  also i found wirering diagrams on this site but they do not include things like my trunk release.  where do i find another diamgram?

you can use the guide on this site to help you find the parking light, headlight, horn trigger, door lock and unlock, starter wire(for a starter kill), and constant 12 to power the unit.  only thing left would be the trunk release, which like i said you can find at the button in the car.  a hood pin you can install yourself if you felt like you needed one for extra security.  you could be halfway done with the install before you find the factory keyless unit and confirm what all the wires are for.