CD player installation?

I have a 1999 Sable that has the digital climate control and radio/cassette player combo. I noticed that it also has a cd control. I love the car but I really would like a cd player. From what I understand the Sables are pre wired in the trunk for a cd changer. Has anyone here ever hooked one of these up? Does it have to be a specific model cd player/changer? Below are picture of the radio that is in it now. Thanks!

http://thumbnails18.imagebam.com/3784/0933c237836659.gif (http://www.imagebam.com/image/0933c237836659) http://thumbnails11.imagebam.com/3784/ce823637836662.gif (http://www.imagebam.com/image/ce823637836662) http://thumbnails14.imagebam.com/3784/30668037836664.gif (http://www.imagebam.com/image/30668037836664)
Free Image Hosting by ImageBam.com (http://www.imagebam.com)