Why not try zip-tying the cables in a nice little bundle next to the connector, and then routing them off to the bottom or side of the mount? I did this in my install, and it not only conserves space but keeps everything neat and tiddy.

A perfect picture of this is shown on bmihulka's page detailing his component box for the mk2. There is a shot of a top view, in which this has been done. If you leave a little slack inbetween the docking connector and the zip tie, it will also help with avoiding "pull" on the connector which might eventaully cause a wire to come off -- the zip tie will prevent the strain