2001 pathfinder, marksman extreme x7

Ok, I am going to end up looking like an idiot I am sure, but I have been having issues trying to install my Remote Start Security system with Keyless Entry.  All the problems come down to the security module.  I have a 2001 Nissan Pathfinder, and everything that I have needed to connect to a wire in the SEC module does not work properly.  I will find the wire that it says to connect to, and test it, but it does not end up working as it is supposed to.  I do not know if I am looking in the wrong area, or what.  To me "located to the left of the steering column under the dash" is a little vague, as there are a million different connections and wires to the left of the steering column under the dash!  The remote start works just fine...it's the alarm/keyless entry/parking lights that I cannot get to work.  Any help, even just pinpointing the SEC module location, would be very much appreciated!  I tried looking online for a better idea and if I am going to get an answer I think it will be here!  Thank you!

I'm installing a Marksman Extreme X7