I don't have to buy a new wiring kit! I have one that i'm sure is the good one for this.
Usually, without the amp/sub harness, there is one harness that connect to the head unit, its the speakers harness I suppose! So, I connect one side of the amp/sub harness to the speakers harness and I connect the other side of the amp/sub harness to the head unit harness.
After that, I connect the little ground wire to a screw. When I finished, the speakers was working and the sub was not working.
Is it blow or I just did a bad connection?
Tell me if i'm not clear! And tell me how to put pics correctly because from my computer, I can see them!