I managed to get some time to sort my sub out at the weekend. So the standard sub will be coming out. I will be hiding the amp away as i hate it being on show and taking up any boot space. I haven't decided whether to add a mp3 player and sort that wiring, or add a mp3 cd changer and stay standard looking. So with that in mind. I want to feed my current amp with the standard headunit. Ideally without having to run more wiring from the front to the boot. So can you take a feed from the standard sub. As in run wires from that to the new amp. It should feed it fine? Cheers.