2001 sentra, bypass

I bought the bypass to install a remote start into a 2001 sentra as well as a valet remote starter. i bought the bypasskit.com bypass but the instructions say to wire the brown wire to the wire that shows negative when running on the remote starter. I dont know which wire on the valet constantly supplies ground, or is this just supposed to be a pulse? also cant seem to find the lock/unlock buttons, or factory alarm disarm. the chart says it all should be at the security module, but i dont even know if the car has one. I cant find the wires the diagrams refer to. Any help would be appreciated.

ok i figured out that the bypass needs ground when running, i cant provide constant ground because then it wont start the next time. The valet doesnt seem to say if any of its wires provide a constant ground when armed. help would be greatly appreciated.

On the side of the valet system there is a blue/white wire coming from a 4 pin harness.  That is the status output that can be connected to your bypass module. The Time Control Unit or the SECU (smart entrance control unit) is to the right of the steering column and is where you would find your lock and unlock wires, as well as the disarm wire.