Vague Electrical Question on a 64

[blackmopar]

I warned ya! haha

Alright - the PO did some interesting 'repairs' on the engine compartment wiring harnesses and I am in the process of rewiring it.

Im having a hard time identifying function of one of the wires. I think it was for the factory 'amp' guage?? Its the Black/White Stripe (14 or 16awg) wire at the drivers side firewall bulkhead. It runs to the horn relay and is spliced in with the 12awg red.

Am I right that it is the Amp Gauge wire?

I am planning to use a later model alt with built in voltage reg, so I am eliminating the VR box near the horn relay and will also wire in a volt gauge instead of the AMp gauge, so if I am id'ing this black wire correctly, it can be eliminated. Right?

thanks if anyone held in for that dissertation and actually understands what Im asking.

Sean