I recently purchased a factory 6-Disc indash CD changer for the 00-04 Focus. My car originally had the cassette player from the factory. Is it possible to get the harness to plug into the 6-disc unit so that I can use it in my car? I went to the local Ford dealership and asked them about this and they told me that I would have to find one in a wrecked car or something along those lines. Thanks for the help.