Here is the dash without bezel and all the mess of wiring
And the finished Alpine unit
Make sure you get EVERYTHING to do it....antenna extension, IPOD adaptor, backup camera unit ect...and even run the video cables in and out if your unit has them, it is much easier to fish the wires that are wrapped up from under the seat than to remove dash and pull all of the crap back out (and I marked all of the wires and what they were too)
Almost forgot, I hid my XM unit under the center console unit, that way if there were any issues it could be reached without pulling the dash apart and also it just wouldn't fit in behind the new unit.