sub woofer audio

Hi, I've just bought a 2007 Eos and wanted to know how to go about wiring in my amp and box. On my previous golf it was very straight forward. Phono leads from pre-outs on headunit to amp, remote wire from head unit to amp and power from battery to amp. i'm told that the head unit may not have...

Has anyone installed an additional sub woofer that does not take up space in the trunk? I was thinking of getting a really slim sub and put it under the rear seats; however, I have no idea how to remove the backseats or if there is room under the seats. Both front seats do not have room from...