Maybe add some sort of texture with the new glow-in-the-dark materials to make the screen display some sort of relevant information. Possibly a map screen, instead of camera, or a fake status display?
Update:
http://www.youtube.com/watch?v=W96VMOm-dW0
Video of Syrian guard tanks in Daraya, with gopro cameras mounted on the turret. Possibly, where screens are available, provide such a feed to the cargospace to enhance situational awareness of transported infantry, additionally to rear view camera.