This thread is 19 years old.
I don't think anyone would be replacing a CD changer anymore when you can get a modern head unit with a USB port, and have thousands of songs on a flash drive, bluetooth, DVD player, etc. Flash drives don't skip.
I recently replaced the stereo in my RV and it had a working Pioneer CD changer, which went to a recycle center, because I wanted a head unit with a USB port.