On a facelift you'll need to get a double din adaptor that fills the gap around the unit, an ISO adaptor from standard aftermarket wiring to ford wiring, an aerial adaptor, release keys for your old h/u
heres a kit with it all in on ebay,
http://cgi.ebay.co.uk/FORD-DOUBLE-DIN-CD...=item230a9f8637You can source all the bits seperately too, and you can get ISO adaptor kits with stalk control wiring as well.. It's a start for you though
Depending on how the bluetooth kit works it can be very easy, If it's built into the main unit like mine it has a tiny usb adaptor module, just plug it in to one of the 2 usb slots, set up your pairing, then select Bluetooth source and your away mate!