Many thanks to the guys in the how-to thread, finally managed to get my new head unit and sub installed! After annoying people with questions thought I should post a pic of the finished product.
http://img403.imageshack.us/img403/7413/stereop.jpg
Unfortunatly the height of the boot is about 3/4 of an inch to low to stand my sub box up
http://img812.imageshack.us/img812/4787/stereo1.jpg