Have you ever stopped to think about all the crazy waves flying around us all the time? Radio waves, wi-fi network signals, radiation from the sun and other stars, and perhaps even signals from other worlds! We are surrounded by signals! To find this cache you will only need to find one signal however...
To find this multi cache simply go to the coordinates listed as stage 1 then search for the right signal. You will know it when you find it!
Congrats to TwinxTwo on the FTF!