Squareback Connection to Electronic VR

olddman said
Should I run new wire from alternator battery terminal to the R6 terminal on the bulkhead connector when I make repairs to wiring harness?

I'd like to say yes BUT we don't know if there have been changes or damage between the bulkhead and the main splice (under the dash).

From this

olddman said
There was Red wire from the battery terminal on the alternator to the starter solenoid and then another Red wire to the battery.

I'm going to guess that someone bypassed or removed the ammeter.
Has the ammeter been showing 'discharge' all the time ?
If so, then the ammeter is still wired in.

We don't know if the rerouting of the R6 wire was caused by, or resulted in, damage from the bulkhead alternator connection to the main splice.
If there is no damage I would definately put an R6 wire back the way the factory had it.
If there is damage, then its a little more complicated.