wait im confused, right now its connected with 2 metra wiring harnesses one from the stock amp to a universal adapter to the pioneer harness. since the harness that comes with the D3 has all of those other wires (ill, park break etc.) does that mean i have to wire the new harness (with D3) to the old universal harness or do they make other snap and go harnesses. im a big noob so i dont really know about all of that stuff