Help needed removing the CD Changer

[Diablo]

Guys,

The MMI update was a breeze, but now I cannot get the changer out in order to put the AMI unit in.
When I put the removal keys in, I can hear a click, but they slide straight out when pulled. I tried applying outward force as a well as pulling, but to no avail. I also tried another set of keys, but nothing.

Any ideas on how I can get it to budge?

Thanks in advance.