When you say you removed the base cover, does that mean you haven't removed the top section?
Turn off and unplug the player with the mirrored panel raised. Look at the two hinges where the panel's attached. There will be indentations above the hinge arms. Slide a tiny screwdriver tip into that indentation, underneath the hinge arm to lift it away from the cover. Then slide the cover up and away from the hinges.
Now the touch panel. On the bottom of the cd player, on the front edge, there's a small hole underneath the glass panel. Slide a thin screwdriver or some other pin-like object straight up into the hole. This presses in one a locking tab, allowing you to slide the glass touch panel to the left. You can then lift the touch panel out, and unplug it.
I think there may be a couple more screws that hold the top plastic cover on, but they'll be easy to see if thats the case.
Austin