2005 Saab 9-3 - lost fob casing

I have a key but lost the casing the fob what do I do? Can I still get a new fob without having to get programmed since I still have the cut key

So you have the key and the electronics but the housing is broken off? You can get one here;

Or you need the entire electronics package but you have the cut key? That would require programming I believe. But there are places that can do it all like this one:

Locations across the USA.