A new Johnny Cash album isn’t all that looks back at the iconic singer’s legacy. A new music video featuring his granddaughter puts fans in the house where he wrote so many of his hits. Grace June Cash — daughter to John Carter Cash and his wife Ana Cristina Cash — comes upon the Cash family cabin in the new, black and white video for “Hello Out There.” “Hello Out There” opens Cash’s new Songwriter album, a never-heard-before, 11-song project recorded in 1993.John Carter Cash says his father wrote it about the Voyager spaceship around the launch. It dates back to at least the early ’80s.Marty …