I'm sorry, I don't know why but I thought I was in the accord forum, guess you got a lude it looks like, well anyways, try following the wire, and yeah the stock headunit should have leads for that, if it's an aftermarket one, I wouldn't think it would (depending on brand and stuff), as a center channel and 7 speakers is not very conventional, and most people don't need it. either that or probably the impedances on the speakers are setup so you can wire them into 1 4 ohm load and the deck has one lead which powers two speakers. at any rate you're in the wrong forum, try posting in the right forum and you might get more help. try prelude and electronics