For some people, the typical car stereo system is something that just does not do it for them. They are not happy with the limited audio and basic features of the stereo system. For them, they need something with a bit more power, and that means turning their basic car stereo system into a custom car stereo system.
The custom car stereo system contains the typical features of a basic car stereo system, with some noticeable improvements.

Head Unit

This unit still works like the other units in basic car stereo systems, but there are more features. Detachable faceplates, GPS navigation capabilities, multiple CD changers, MP3 capabilities and more are all components that can be put in to make the head unit a bit more advanced.

Speakers

Beyond the main speakers of the door, and occasionally the dash, custom car stereo owners will also install speakers into other areas of the car, or simply improve upon the speakers that are already in the car at that moment. This gives the car added sound, and added power, which are big parts of the custom car stereo system experience. Sometimes, car owners will actually install speakers into the trunk so that when they are relaxing with friends at home, or out and about, they can stand around the car and have great audio from the speakers in the trunk.

Amplifiers

A very important, but often forgotten component of car stereo systems is the amplifier. These provide the right amount of power, in watts, to power the speakers. If you want a loud speaker system, then you need an amplifier. It is very important that you ensure that the total power handling capacity of the speakers connected the amplifier is greater than, or at least equal to, the power of the amplifier. The amplifiers currently sold come in two, four and six channels.

Subwoofers

These are the big guys of the car stereo system. They provide the bass, and sub-bass, that will announce your arrival blocks before you pull up. The subwoofer is not about hearing the bass, but about feeling it. The lower the frequency on the subwoofer, the harder it is for the human ear to hear, but the greater the feeling of that vibration in the body. The great thing about having sub-bass, is that it is omni-directional, so the human ear can’t figure out where the bass is coming from, giving a surround-sound feel to the bass.