Voltage Regulator problem

There are only 2 wires coming out of the alt. 1 larger gauge wire which I assume is the charge wire?
Its the alternator output wire. if it goes through a grommet you have a car which came with an optional 60 amp alternator and probably a the rear window defroster.
If it goes to the bulkhead connector you have a standard setup. On the diagram its wire R6.


then it T's before entering the bulkhead.
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Hm. That might be a home made version. But yes there is one blue wire coming from the bulkhead. That's the ignition run wire from the key switch. J2 or J2 something and originally had a white stripe.
When the key is in run, that wire gets power.
The power then splits at the junction. So each wire there goes to one of the items discussed above.
Cudamark recognized the first item photod


From the T, 1 wire continues onto the ballast resistor2-jpg.jpg
That's correct.

and the other just dead ends at this connector near the battery

This connector?
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