While working at a junkyard he finds an old radio which can help him hear to whoever he wants from President of US to his cheating girlfriend anyone.

This is an interesting premise, but could use some work as a logline. There is some emotion within the conflict this character could have with the world around him, yet there seems to be no clear antagonist to the film currently. A logline with an antagonist and stakes could look like this:
"A Junkyard worker in a dying relationship finds a radio that allows him to listen to whoever he wants, even his unfaithful girlfriend."
This is a rough draft for a logline, but your premise is exceptionally fascinating with practically limitless possibilities for conflict. Hope my encouragement for a clear antagonist and stakes doesn't come across rude or harshly.