When your factory radio doesn’t turn on, you might feel frustrated and confused, not knowing where the problem lies. Actually, you can troubleshoot and solve the problem by following some simple steps, and make your radio work again. The methods to troubleshoot and solve the problem are as follows: First, you need to check if your radio is properly connected to the power source, and there are no loose or broken wires; Second, you need to check if the fuse of your radio is blown or damaged, and if so, you need to replace it with a new one; Third, you need to check if your car battery has enough power, and if not, you need to charge or replace your battery; Finally, you need to check if your radio has any physical damage or malfunction, and if so, you might need to repair or replace your radio.