I think my car is wired for an amp/sub but I'm not sure.

[bangu]

Hey everyone I just bought a car and I think it is prewired for an amp/sub but i am not sure. I see the following wires in trunk; schooche 4g power wire, a big freakin loom of speaker wire, a plug that looks like a computer monitor cord, and a cord that looks like an ethernet cable.. and there is also a ground wire... what do you actually have to plug in to the amp???

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[WhatsAminiTruck]

The 4awg goes into the amp.

But the other end of the 4awg, the positive, goes to the battery positive. And the other end of the negative 4awg goes to a ground.