Ford ranger radio problems

[Ike22]

My 2011 Ford Ranger XLT 4.0 cylinder has radio problems. If you push the power button it’ll turn on but not emit sound. The antenna was bent so I replaced it and it didn’t change a thing. So I checked the connections on the back of the radio to see if there were cut wires or anything suspicious and there was not. So I replaced the radio and still no sound. Anyone have any ideas as to get sound to play? I just bought the truck and the radio worked intermittently with the power button and now not at all.