Car started up when I put the battery and alternator in, but I didn’t run it long… Owner has told me they started the car and then it died two minutes later when they originally swapped the alternator. I was able to start the car, but the alternator wasn’t charging.
Per the diagrams, exactly, it must be the wires from the ignition switch or the switch itself… The owner is probably going to swap in a switch. I’m like 90 percent sure that’s the culprit. A loose wire seems unlikely. The other symptom was a drained battery.
Yeah definitely a little scattered and less diagnosis… I’m learning… I regret even testing the ECM 
could of shorted it, but don’t believe I did as I barely tested it.
Wish I would of picked up the online factory manual earlier and studied the diagrams more before jumping into troubleshooting. Well worth the money 
and clearly is a power to the ECU issue not the ECU. ECU probably would of failed and not been intermittent.
I think I remember the door chime not working when the door was open with the keys in the ignition and the radio only coming on when in ON and not ACC. I think there is a short and broken connections in the ignition switch… fuses are good. Car was running good until a few weeks back that’s when the ignition started sticking and being hard to turn. That switch failed hard.