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Don't get dazzled. It's radio.

You have a radio receiver in your car. The three XM satellites and about 900 ground repeaters

have radio transmitters. They transmit radio from the transmitters to the receiver in your car.

Except for some updates in technology, the frequencies used, and the fact that you have to

pay for it, as far as you the driver are concerned, XM is the same thing that's been going on

since Motorola first took a radio out of a kitchen and put it in a car.

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15y ago

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