amp rotated 90 degrees from previous picture so that it's possible to get to the controls for the amp without having to remove the seat every time :) Also note the wires now go under the carpet and the length of the ground has been significantly reduced (will now be attached to one of the bolts on the seat). 

I may try routing the power cable (the big fat red one) on the other side of the seat (so that it's not next to the speaker cables). But that's not for today... I'll deal with that when it's time to install the DVD drive (which will probably live in the arm rest) along with an additional USB hub and a firewire cable, because you can never have too many firewire cables, really.