I need one please!!! I hooked up a pair of 12" subs and I'm getting my feed from the rear wires to the 6 3/4" door subs... since those wires are coming from the factory amp, the 12"s sound like shit. The amp is pre-tuned for the smaller door subs, so I'm not getting low enough frequencies for my 12's! I'm going to splice into the wires between the head unit and the amp for my signal

But I need the diagram

Thanks in advance!
Or... anyone else have a better idea?