He’s still alone in his own solar system. He’s beyond the point at which radio signals, like that of your phone, no longer carry useful information. Since he is the only one there, he’s talking to himself and always hears it.
This plays off the common Verizon line, “Can you hear me now?” Royce’s world doesn’t get good coverage.
There is also a double entendre here when he says you don’t got a choice:
- If you want to hear real rap you have to listen to him cuz no one else is doing it
Or
- That a lot of people are going to like his music and it’s going to get played everywhere so you will hear it whether you want to or not.