Originally Posted by
Almeuit Ah so your experience is from old phones.

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FM radio is old tech. New phones don't have any better fm radio than old phones. They all use an inefficient headphone connection for an antenna. Good FM reception depends upon the best antenna more than the best receiver.
Car antenna is a mast outdoors or a long wire strategically placed in the window. The mast antenna works best. The wire in the window is better than a wire inside the car. If you car has an antenna (sometimes mast antennae are broken off by vandals) the car antenna is bound to be better than headphones inside the metal car.