You need to release the radio first using the keys that come with the Kenwood. If you don't have the keys, 2 jewelers size flat tip screwdrivers will do the trick. Just slide them down the middle of each side of the radio, and it should release the lock clips. Be patient, it can take some fiddling to get the locks released. Once the radio is out, there should be only 2 screws holding the panel in. But if you're just connecting RCAs, you don't need the panel off, just the radio slid out.