Antenna is very essential for a radio. The air surrounding us in very silent. The activities that are electromagnetic cannot be captured by the ears of normal human being. All the waves including the one from TV, radio, communication through wireless and even transmissions of the internet are in this environment where we all live, sleep and eat. The human body is not affected by this kind of electromagnetic waves. And hence it does not have the capability to sense its travel. So it is very essential to use a device that could capture all these signals. But how do auto radio antennas work?