One other thing I did to clean up the wiring was relocate my satellite antennas, the XM was on the roof, and the GPS was on the dash. I didn't really like either place for them, so I put them on the rear deck.
The wiring from before was terrible, it was all over the place, there were cables everywhere! Under the back seat was where the excess wire from the amp was hidden, but it was a mess. Now the wires run through the cable channels that ford built. I used to have wires stick out and fall down near the gas pedal, sometimes they'd even get caught on my foot! Not good while driving. Now they are bundled together, and actually run under the carpet in a different place. The Homelink system wires were a mess too, I used the wrong gauge wire, and didn't really connect them reliably.
Looking back, I don't know what I was thinking when I did this all, the box was too small, the wires... It's quicker to take your time to do it right the first time, then to have to redo a sloppy job over and over...
There's not too much room left though for cable for the puter, I may have to get the 2 AWG wire out and get some d-blocks when I have everything put in (4ch amp, computer) but that cable is huge, 3/4" diameter! We'll see!