I have put together quite alot of information that I collected from several forums and email sites in a PowerPoint on Non-DSP Stereo Subwoofer and Amplifier upgrades. I would be happy to email it to you thought it would be useful. The information has wiring diagrams and pin information as well as how different people have accomplished the upgrade. One thing I have noticed is that the speaker wire colors in the harness are not the same across the board. However, people in the articles say to use the pin number and the information will work. Let me know if you want me to email you, Comanche