Bypass OE ampmeter

Depends on "whether you care" if the ammeter works or is accurate. The thing is, when you move loads from the original source to the relay stud with no other improvements, then it depends on whether the alternator is the source, or the battery. Same deal if you move the loads to the alternator stud.

Running a 'huge' wire direct from alternator to starter relay is one way, but this removes ALL fuse protection AKA "the fuse link." And of course makes the ammeter ineffective.