I am not a fan of the aftermarket radios in Fords with the oval insert. They just don't look right. Unless you are looking for a real high end radio. Me, I am pretty much tone deaf. Just give me a radio that looks right.
Mark, I have the same radio. I bought a "kit" off Ebay, if I remember correctly, that works with the factory head unit. It basically is an adapter box that plugs into the controller that is under the carpet near the drivers rear wheel in the trunk. The box then allows you to run an AudioVox CD changer. I know AudioVox is not the premier CD changer out there, but it has worked great for me for the last 2 or 3 years. Another advantage, I have a 10 disk AudioVox CD changer. I know the headunit says "Disk 1 - 6", but the display will show up to 10. I was worried when I hooked it up, but I just kept pressing the button for the next disk, and it incremented right from 6 to 7 to 8 to 9 to 10. No errors or anything like that.
I think the whole thing cost me $150 (adapter and changer).
The adapter came with a VERY LONG cable to hook up the CD Changer. You could probably place the changer under the hood. It is a single cable hook up to the changer. No need to worry about power or anything like that. One plug to the changer, one plug to the factory control box in the trunk.
If you want, I can pull out my carpet and see if there was a company name or any identifying marks on the converter box.
Ken