what 99mystique said.
I didnt need anything special w/ my 9833 install. The Alpine came w/ the sleeve and the face plate. All I had to do was a simple swap. I did have to run a power wire straight from the batt directly to the HU b/c of the extra juice the V-drive amp requires (Alpine strongly recomends this). Yes you definatly want to bypass your stock amp as mentioned. Not sure if yours has the V-drive amp like mine but even if it doesnt it will still be better than the POS amp ford threw in there.
HTH