electrical problems...

I'm not trying to be mean here---but if you want us to answer questions you are going to have to be more specific with your descriptions, AND post what year/ model your car is. (An avatar is just a picture, we can 'assume.')

So the important stuff is this, referring to this diagram, you tell me what YEAR your car is.

(I random picked a '65 Val/ Barracuda:)

http://www.mymopar.com/downloads/1965/65ValiantBarracudaA.jpg

http://www.mymopar.com/downloads/1965/65PolaraMonacoB.JPG

One thing to keep in mind about the ammeter, is that EVERYTHING (except the starter) is hooked to ONE terminal of the ammeter, and ONLY the battery is hooked to the other side

This means that the charging wire from the stud of the alternator originally goes through the bulkhead connector, to the welded splice in the harness, and to one side of the ammeter.

(On the 65 diagram, I see that they show it may not go through the bulkhead "main" connector, but goes through separately? Is that right?)

You can follow this, find the alternator on diagram "B" and follow the thick black up and off the left of the page, then refer to diagram "A" where it comes back on the page at top right

Notice that the black comes in and down the page, to a SPLICE not far from the headlight switch. THIS SPLICE is "infamous" on all Mopars of this ere, and is taped up inside the under-dash harness. On this diagram, it comes in from the alternator, feeds off to the headlight switch, the ammeter, the instrument panel, and the red with tracer feeds back OUT the bulkhead to the horn relay

The BATTERY (on this diagram) comes straight UP off the start relay labeled "fusible link" goes through the connector (firewall) on a red wire and to the ammeter



Now there is ONE very important wire for ignition/ charging

Go way down to the bottom of diagram "B" and find the regulator. You'll see a "dark blue" on the IGN terminal of the regulator

NOTICE that one of those runs up to the "resistor" (coil/ ballast)

The other wire goes straight up the page to "B" on the bulkhead connector. THIS GOES directly into the car and to the ignition switch, and IS the ignition and regulator supply voltage for the car. This "dark blue" STAYS that color for many years in these cars and is known as "ignition run" or "ign 1"

THIS DARK BLUE, then, supplies the coil voltage and voltage to the regulator to operate the charging system

The OTHER important wires for start run are:

On the start relay you will see a yellow, going to "C" on the bulkhead connector. This is the "start" signal which comes from the ign switch when you twist to start

The brown off the right side of the start relay is GROUND when the transmission is in park/ neutral from your neutral safety switch, and allows the relay to "fire."

Also important is a THIRD wire coming from the ignition switch which ALSO is only hot in "start", and this is the "coil resistor bypass" circuit, known in the shop manual as "ign2"

To follow this wire, go down to the bottom of diagram B and find the coil resistor. Find the brown coming straight up off the top of the resistor, which goes up to "D" on your bulkhead connector. THIS GOES directly to the ignition switch, is a separate set of contacts in the ign switch, and that is the only thing this circuit does----when the key is twisted to start, it shoots battery voltage right directly to the coil for a hot spark during cranking.