[donv]

For the button, the panel there just pulls off. If you can get your fingers under it then you should be able to pull it off. I've seen it recommended to use a dinner knife to pry it free, but I just used my hands to avoid any nicks/scratches. When I did it, I was doing some rewiring and the radio was pulled - which made the panel easier to get to, but I don't believe that is necessary.