Hi all, I am new here but if anyone can help it would be greatly appreciated. I have a 2004 Tiburon. With the Infinity system 360-watt (6 speakers and subwoffer). My problem is that the sub does not have enough snot.I would like to install the subs and amp from my old car (rockford amp & 2 12-inch polk skull crushers). My question is where can I pull my signel from? A friend told me I could pull straight from the sub connector and run it straight to the line in on my amp. This does not sound right to me as the sub is amped by the 360 amp it would be throwing 360 watt into my amp and this can't be good. I do not want to change the head unit as I have only had the car 3 months and don't want to tear the dash apart yet. So the question remains where can I pull my signel from as I am most likely going to have to pull it before the amp. Is the amp part of the head unit? If not does anyone know where the amp is located? Is the sub the only speaker amped? Thanks Gregg