I cut off the cord cap to a power strip (4 outlet I believe) and threaded the cord through the hole in the back of safe.
Install new aftermarket 115 Volt cord cap onto cord of power strip. Plug this into your 115 volt wall outlet
Plug your golden rod into the powerstrip.
Buy and install (around the inside perimeter of safe) flexible "rope" light. They come in different lengths, you can connect for longer lengths also. They now come in LED (white/colors) and not the standard incandescent(yellow hue). The rope light kit comes with plastic clips and screws but I have had some break. Buy some Ty-wraps/plastic ties/zip ties with a factory screw hole built in and tie your rope lights and screw into the inside drywall. Use some meaty screws also or they will pull out.
Buy a "in-line" cord switch that you install between the cord cap of the rope light and the start of the lights. Place this at a height that you can conveniently reach. Note: Split the outer jacket of the cord, just cut and terminate the black/hot/ "ungrounded conductor" and pass through the white/neutral/grounded conductor and green/ground to save space inside the switch.
It works great, looks great. If I knew how to post pics I would.
WARNING: If you are not comfortable with home wiring then get some help, and not from some bozo who claims to know everything about electricity. I know other electricians that I would not trust to wire stuff at my house. There are good ones and bad ones......and that goes for all professions.