Another ammeter bypass question

Fusible link should be 2 sizes smaller than the wire it protects. I've always felt the factory 12 gauge wire was a bit small for the amount of current on it. Blower, wipers, lighting, a/c?, everything. It adds up. Replacing it with a 10 gauge wire into the cabin is not the answer. Relays to move some of the current off the 12 gauge wire is smarter. Headlight circuit is the most common application of relays.