Any ideas ???

'85 Ramcharger (just bought). engine wiring harness was cut and spliced in a lot of places, had a jumper at the starter relay, and boiled the battery (tried another proven alternator, new voltage regulator and another battery). However, it did start flawlessly by the ignition. So I swapped for another '85 harness.

Now, if I try to start it with the key, the 2nd orange wire (not the outside orange wire) I'm pointing at coming out of the black "Y" junction in the pictures smoke immediately, and that's all that happens. I can start it by jumping it at the starter relay no issues. No wires get hot when it's running. I've checked the grounds that stem off of the harness. Having a little trouble chasing this one down.

Any thoughts?

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