Broke Scion tC Pioneer navigation/audio system, please help!

I have a 2005 Scion tC. Inside is installed an Pioneer Avic Z1 navigation system/stereo.

http://images.groundzero1v.multiply....2C0NxS9ZI9+w

This picture is not from my car, but it may help explain my predicament. For some unfathomable reason, I had the idea in my head that the top segment was removable, and that it had RCA ports on the back for me to plug an auxilliary cable into. For this reason I tried unscrewing the screw underneath the HDD. Big mistake, as it fell and lodged itself behind the navigation system moniter.

At this point, I had to get it out, so I tried a magnet, which did not work. I then took a piece of plastic and tried to push it out. I felt something resisting, and stupid me, thinking it was the screw forced it up. Turns out it was actually a thin, connecting copper film type deal that powers the screen.

Now, the screw is still back there, the screen is blank, and I can't hear the radio in my car. I know this is completely my fault, but is there anything I can do???