Siriusxm if you want to add satellite radio to your new car stereo make sure the stereo you choose is satellite radio ready that means it can control an optional hideaway satellite radio tuner if you already listen via the phone app or have a portable satellite radio then your new stereo just needs an auxiliary input or bluetooth. Upgrading your car stereos receiver is the one of the easiest ways to boost your dashboard tech here are the seven features we look for when making recommendations. One final key to consider when choosing a car stereo are their signal to noise ratings the higher the signal to noise ratio the louder and more defined the sound output this is a key spec often overlooked by newbies but comparing this rating this will help you compare the quality of radios across the board without actually having listened to them. Using the filters within our car stereo pages will help you choose right the car stereo that is just for you if you need further assistance you can always drop by your local car toys store our staff of product experts and professional installers are happy to help you with all of your mobile entertainment needs