The centre point to any fantastic car stereo is a brilliant CD player. The best car stereo speakers and accessories do not amount to much unless you have a quality CD tuner to source your sound from.
A good CD player for your car should have a few standard qualities. A car CD tuner should be able to pick up a range of radio stations, and communicate a quality translation of sound to your stereo system.
These days you want your car stereo to be MP3 & iPod compatible. MP3 car stereos come in a variety of makes and models, and a wide range of input types. From direct input using an MP3 CD, USB connection, or interface adapter for iPod, there are many options for MP3 input.