How to find all 3 Radios that play the music Easter Egg, Shepherd of Fire by Avenged Sevenfold in the Call of Duty Black Ops 2 Zombies map Origins.

There are 3 Radios spread throughout Origins, the locations include:
1. Found near some crates in the room just off the Spawning room.
2. Found in the Workshop, Upstairs under some shelves.
3. Found in No Man's Land, near the sign for Excavation site beside some crates.

Once all 3 are activated the song Archangel by Elena Siegman, Malukah & Clark S. Nova will now play.