In Dash CD Changer Blocked on 2004 Audi Allroad Quattro

As I said in another post, I'm going to separate my questions so they're easier to read.

Just bought my car used with a warranty. Seems like the in dash CD changer is blocked. By what? I'm not sure. I hit the load button, but can't get a CD in. There are no CDs already in there. It looks like it's blocked by something in the center of the slit. Perhaps an item that detects you pushing in a CD. Anyone know why that would be so stuck?

Asked by for the 2004 Audi Allroad Quattro