Here’s a picture of my 600w Kenwood KAC-729S, a 4 gauge wire, a black 4 gauge spade terminal, a red 8 gauge spade, and a 12-16 gauge spade.
The fuse in the amp is 40, the 4 gauge cable fuse is around 90-100. I’m running the 4 gauge back to the trunk and I was going to split it to an 8 gauge...