radio not working

Radio is easy to pull out of the vehicle. Check the connection in the back and especially the ground. I would grab any old speaker that you know works and connect to the speaker output on the radio. See what you get. If nothing comes out and you have it connected correctly, there could be an amp problem with your radio. Replace it. Otherwise is sound is there, start tracing the problem from the radio out to the speakers. Not all of the speakers will go at once.