For most of us, a car audio system is nothing more than a device that plays our favorite music. However, the car audio systems are complex mechanisms. Before you install your car audio system, it is best to define what a car audio system is. Buying a car audio system can be more complex than buying the car.
Reasons to install your own car audio system is one, if you are on a tight budget and would like to save possibly hundreds of dollars on installation costs and two, if you would like to customize your car audio system installation. For most of us, a car audio system is nothing more than a device that plays our favorite music. However, the car audio systems are complex mechanisms.
Sound deadening material is often used in the door cavities and boot/trunk area to damp excess vibration of the panels in the car in response to loud subwoofer bass tones, especially the boot/trunk. Unless you are driving a car with a name brand sound system (and possibly even if you are) the speakers in your car are of an almost laughable quality. Most head units have come with amplifiers built in. Unfortunately, the sound quality these provide isn’t usually very good. In fact, some higher-end models don’t even include amplifiers with the expectation that the buyer would want to add good quality external amplifiers anyway.
The physical size of car audio head units is measured in DIN, but these sizes can differ by country and/or car make. Also, changing the head unit allows for improvement upon the features of the system. In a perfect world, your head unit would be used to provide a signal to your amplifiers that is line level and you would not use its internal amplifiers (if any).
While purchasing a head unit for your custom car audio, you should pick one that is compatible with the maximum number of media. Make sure the head unit is compatible with satellite radio, MP3 and home-recorded CDs. The head unit (the equipment and display set within the dashboard) is the first item to upgrade.