Full Functioning Vintage AM/FM Radio Hideaway Safe Full Functioning Vintage AM/FM Radio Hideaway Safe. No one would ever guess that this retro-look radio is really a safe! The old fashioned AM/FM radio hideaway storage is a safe way to protect your cash and other valuables from theft in your home or office. Looks great and sounds great as well! Works on 2 AA batteries. (not included). Has plenty of room to store much.