[TheWatersBoy]

So I think I'm just completely over thinking this, or I'm more of a noon than I think I am when I comes to car audio lol. But can someone explain to me exactly how you would wirecommend this up to add a sub? I bought the metro 70-1761 harness and a line out converter, but I'm not being able to figure out from what's been posted already how to rewire the harness, and why it has to be rewired, as well as how to connect everything together. Can someone please help break it down a little bit more?

Edit to the edit: So I'm starting to figure this all out and here's the question. If I hook the metra 70-1761 to the oem harness and wire it to the configuration in the OP, and connect in the line out converter to the signal wires, then connect the wires to the metro 71-1761 and plug that into the amp, will that allow me to have door speakers and add a sub?