Question edited for clarity.
Question moved from Televisions Category.
Speakers like this aren't meant to be taken apart. They are a disposable item and only cost $20 from Walmart when they were new.
Looking at them you would use a Spudger Tool around the front edge and find the plastic clips and ease them apart. A spudger is like a blunt butter knife.
That's strange. Have you tried unplugging the BKH500 from the power source and then plugging it back in? That can sometimes reset the device. Also, make sure that all of your connections are secure and that the device is properly installed. If you continue to experience problems, contact Brookstone customer service for assistance.