Update!
It's alive!!!
A couple of nights ago I decided to mess with the 6cd changer and opened it up. Granted, I had no idea what I was doing other than looking at the mechanism to see if it's stuck or if I could do something about it. I played with it and it seemed jammed. It would go up and down smoothly. After a little bit of nudging and prodding, I was able to get it to move more freely than it was before. I put everything back together and today I decided to try it out and it worked! I loaded 4 cds and they all access and play fine.
I can see how bumping it upside down might work while plugged in. Now I have a 6cd changer after about 10 months of it collecting dust.