Hmm. Well my 92 diagrams show a light blue/yellow wire goes to "neutral sense switch(MT)/neutral sense jumper(AT)"
But my ignition diagrams show the ignition wire going from the key, through a jumper near where the clutch would be, then down to the park/neutral switch on the transmission, and then to the starter relay.
So you may not need to hook up a neutral switch as long as you are making the remote start connections before the auto trans switch.
I would test the setup you have now by trying to start it in first gear. Set it to the shortest crank possible and have your foot on the brake. If the starter turns over, then you know something needs to change. If it doesn't, then your good to go.