Unlike FM/AM radio, satellite radio operates on a subscription model and broadcasts encrypted digital signals from orbiting satellites. These are decoded by satellite radio receivers that can be found in cars, trucks and boats. Subscribers get access to hundreds of channels featuring commercial-free music, talk radio, comedy, sports, news and weather reporting — something for everyone’s taste.
Many newer vehicles are equipped with satellite radio as a factory feature. But if yours doesn’t, you can add the technology with a satellite vehicle kit or by swapping in a replacement head unit that has satellite capabilities. Head units typically offer a wide array of features, including preamp outputs for the main stereo speakers and one or more subwoofers, as well as multiple EQ settings that let you tweak the sound to your liking.
Most of the best satellite radios include a built-in antenna, making it easy to install in any car. However, you may want to consider getting an external antenna if your vehicle is in a difficult location to reach the sky or if you are in a rural area with weak reception.
In the United States, two satellite radio companies emerged in the late 1990s: Sirius and XM. Both provided satellite-capable radios, but a battle for marquee talent (including Oprah Winfrey and Howard Stern) and the cost of operating a new service caused each company to suffer. Eventually, the rivals settled their differences and merged in 2008, creating Sirius XM Radio.
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