Issues with radio

[Derrick30]

Has anyone had any issues with their radio playing sometimes and sometimes it won't? If so what did you do to fix it? And this is a '13 GMC Sierra 

[Badbird2000]

I have had this issue off and on for over a year. I have replaced all the speakers, didn't help. I have no idea how to fix it, other than buy a new truck. I tried pounding on the dash, but all I did was add another crack to it.