Well I'm being lazy, just wondering if anyone has added an amp and sub to the existing factory setup. I could tear the dash apart and chase down the wires but it would be much easier to put the low lvl adapter in the trunk right before the factory amp. My prob is... what wires are what on the amp lol. I need a diagram..Anyone who has done this know what wires are the Rear lft + - and rear right - + INPUT to factory amp? :/ guess i can tear the dash apart lol.