When you go talk to it, it'll ask you to find three more power boxes much like the one outside Mickey's house, unlocking the Ostown Phone Network quest. However, when you get out of this house ...

"A man thinks he’s discovered a power box in his backyard, but when he pulls it up, he uncovers something much more surprising." #BackyardDiscovery #UnexpectedFind #MysteryObject Katy Perry ...