Un-hacking ignition wiring

100A Run about a no6 wire WITH an appropriate fuse or breaker direct to the battery from the alternator. Read the MAD article on the whys and whats of bulkhead connector (firewall connector) failure, as well as the ammeter

Catalog

You are going to want to reduce voltage drop to the ignition system and just as important, the VR ignition terminal (unless you are swapping to a one wire alternator) Use the "ignition run" line to key a relay, and power the ignition/ alternator field/ VR off that relay, fed with a fuse/ breaker off the starter relay "big stud."

I DO NOT particularly like "one wire" setups. The "sense" is the only wire, so this wire MUST be "big" in that case to reduce voltage drop and keep the sensing within bounds.

WHERE IS that connector you pictured? Is this under the hood? If that is "that" one, then eliminate it. Just splice / replace damage the wires and cut out the connector. In this case leave it out. It was a REAL bad idea

And, are you still trying to wire up the ignition / resistor? We can get you some diagrams, go over to MyMopar and download free service manuals if you don't have, as well as aftermarket wiring diagrams and some simplified ones concerning the ignition.

At this site, bare minimum, you want to look at service manuals and electrical

MyMopar - Mopar Forums & Information - MyMopar Tools/Reference

And browzing through those tech bulletins (Master tech) is not a bad idea