I would suspect the alarm relay contacts.
You may want to try arming the car several times rapidly and retry start. That may help clean off the contacts..or the relay may even be bad

I do not have a 129 chassis schematic , so that is hampering the diagnosis..I have most all others
Maybe someone here has one??????????????????

This would cause the no start problem I am having ?

Yes

The circuit for starter is bat > ignition sw > Gear selector sw > alarm interlock relay.. Any part/break in that series chain and the starter circuit is inactive.
That is why we talked about the gear selector being in N . That is a common fault for your condition, along with the interlock relay and the fuse that feeds the relay.
Each part has to be traced and checked via the wiring diagram.
Anyone have a 129 schematic?????????????

Is there a way to bypass this alarm interlock relay ? Maybe temporarily ground it out ?

I finally got the car into my shop to diagnose the problem. Went through all of the possibilities mentioned and came to this:

The shift knob on the center console has power running through it for some reason. I'm positive this is not normal ? When moving the shifter in and out of gear ( with the key to the on position ) it makes a clicking noise and the engine light comes on.

I've tried getting to neutral safety switch, but cannot seem to access it easily. Any suggestions for me ? The car will still not crank at all.

I would check to see if applying +12 directly to the starter, or terminal block gets it going. I would then suspect a bad alarm, unless of course you have a kill switch that you forgot about over the winter, because it sounds like no juice is getting to the starter.

good luck

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Got the problem figured out finally !!! It was a loose transmission ground.....