2007~2015 CX-9 radio problem...Help

Mazda CX 9 GT 2007
My Mazda CX 9 2007 radio doesn’t play FM or AM stations for some reason anymore. I have taken out the radio once before to do some work in the back but put all the wires back to there original spots. It’s an OEM radio unit and I’m unsure why it stopped working and I cannot find anything on google, also my car is showing me Fahrenheit when it should show me degrees Celsius for the temperature.