is it my neutral safety switch? help please

I cannot remember if those have the seat belt interlock? Look in the engine bay, read this:

http://www.forabodiesonly.com/mopar/showthread.php?p=1969624169

http://www.forabodiesonly.com/mopar/showthread.php?t=292463

http://www.forabodiesonly.com/mopar/showthread.php?t=14304

If you have it, connect the two yellow / yellow tracer wires together.

Your starter relay should have FOUR terminals.

Two of these are "push on" connectors. One should be yellow and is the "start" voltage from the ignition switch. The second one goes down the firewall to the center terminal of the NSS on the transmission. THAT switch should be grounded in park / neutral

Try wiggling the shifter when holding the key to start. Any click or try to crank indicates linkage problems, misadjustment, bad connections at the NSS or a bad NSS

Unhook that wire (transmission) and ground that starter relay terminal. BE CAREFUL the car is in park, and try cranking with the key. If it won't crank, it might be the starter relay bad.

Also might not be getting start voltage from the key, IE bad connection through the bulkhead, or even a bad ignition switch.

What do you have for testing? You should have a FACTORY service manual, a 12V test lamp, a multimeter and some "clip" leads. NO excuses!!!!