7.Here's a look at how the wires are hooked to the amp. The top two are the speaker connections that run over to the box. The silver wire is the ground, the thick blue is the main power wire, and the thin blue is the power turn-on wire. The other end of the ground wire was screwed down to the floor panel after the paint was scraped off. This will be under the carpet so it didn't have to be pretty, just functional.