1999 Ford Taurus- installing a cd player...?

[Benji2t20t09<3]

I have a 1999 Ford Taurus wagon. I want to install a cd player, and I'm pretty sure the only way I can do it is by putting in cd changer, mounted somewhere in the car or trunk. Does anyone know if this can be any cd changer, or is there a specific one Ford is wired for? Where do they go? Any ideas on where I can get one inexpensively? I already tried Crutchfield but it didn't help. Thank you.