Do I really need the wire from the alternator to the bulkhead connector?

@crackedback also supplied an alternator wire around harness in either 6 or 8 gauge with appropriate overload protection. IIRC his recommendation was to leave the original 10 gauge alt. wire in place when installing the extra alternator cable.

Right... that was my initial thought. Just leave the original alternator wire into the bulkhead. But then I started asking myself why it needs to come from the alternator? In the factory setup the power goes from the alternator, into the bulkhead, through the ammeter, then out of the bulkhead to the starter relay. The first place that circuit sees a fuse is the fusible link coming out of the bulkhead.

So I was thinking why not send power from my relay box to that bulkhead terminal, rather than from the alternator? I could put that whole circuit through a fuse from the start.