Never done it, sorry man, you could always go up to best buy and just talk with the installers, if you get someone cool, they will probably just tell you how, or do it for you for free. I know whenever I have a question on installations that I cant find the answer to, I just go hang out at the local speaker store and talk with the guys, and they normally give out info pretty freely. Good luck, sorry I couldnt just tell ya what ya wanted to hear like....oh its the green wire...