Here's a good one:
http://www.fordforums.com.au/showthr...=single+pocket
I did the same thing when installing my Pioneer unit, except I didn't make the steel strap under the cradle like NC1183 did. You need to drill some holes in the side of the cradle to allow you to bolt the surround back in after you've put the cradle in.
I found that the cradle will sit there fine without the steel strap if you install the cradle first, then bolt the surround back into position, slide the head unit into the cradle (while making sure the rear retaining screw and rubber poke into the factory hole), then instal the pocket underneath. If you put the pocket in before the headunit it makes it pretty hard to line up the screw and rubber.