You can try a little clear suction cups like one that goes on the inside of windows of cars to hold those "Baby on board" signs. Just lick, stick and pull! Hope it works. Thats always a bummer to look at that. L8
You could pull the screen off. It wont hurt the sub. You may even be able to reatach it. Just becareful running something throught there, and dont use metal.
TAKE A HOT GLUE GUN AND TAKE A WIRE BEND A 90 DEGREE TURN IN IT AND GLUE IT TO THE CENTER THEN PULL AFTER UR DONE U SHOULD BE ABLE TO PICK THE GLUE SPOT OFF