95 Olds 88 Security System

I have built a 555-Timer module to pulse the injectors, and am trying now to jumper the start enable relay, because I have had a long running intermittent no crank problem with my 95-88 Royale. I also put the proper resistor across the key input to the decoder module.

But I am having a hard time locating the start enable relay and park/neutral switch. I do have a schematic that is supposed to be correct, but am still not finding those two switches. Is there an online source of schematics and parts locations for Oldsmobiles? AutoZone has a few, but none are of any help.

Thanks