Multiple charging wires from alternator

[jumpsoffrock]

Can I add another charging wire in addition to the factory 12ga wire?

I am adding a large electric condenser fan and also prepping for any possible future electric mods. I am going to carefully tear apart the junction area near the drivers headlight and essentially insert a new 10ga charging wire from the alternator.

The trucks original harness to the alternator has one 12ga red and the white and blue wires, and I have always been hesitant to simply chop off legs of the original harness, even if not in use.

Then I thought, can I simply add the 10ga wire, splice it in as near to the 12ga red, and keep the factory 12ga red charging wire, as long as the exciter wire goes very near to where they are?

I was intending on simply splicing a new exciter wire to wherever the 10ga wire enters the harness.

Thank you.