Ford ranger radio problems

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.