If you do not know or cannot comprehend what that term means "noise" from your car audio system then you perhaps don't own a car audio system yet. The fact is that whosoever has ever installed a car audio system in their cars will know that there is always the chance of this noise to occur. What is this noise if you ask, it is that screeching noise or even a slight disturbance that penetrates out through the speakers in your car that does not belong to the audio track that you are playing. There are many sources and several reasons why this could occur, because of a thump of the ignition, the amplifier sizzle and many others. However there are a few precautions that you can take while you install the car audio system that would reduce the chances of this noise emanating from the speakers in your car.
The number of ground loops that are created for example is very important. This happens when an audio ground is created in places that are not meant to be. The chassis ground and the audio ground should ideally be connected only at the source unit of the system, however this is not always practical though this is what theoretically should be. However, in most stereo systems in cars which have such a problem with the noise emanating from the speakers of the system, there are ground loops that had been created additionally during the installation process which become responsible for all the noise.
The next thing that you should keep in mind is regarding the quality of the audio cables that you use for the installation. The audio cable should be fully shielded and for that kind of quality you will of course have to pay more than usual. But a hundred percent shielded audio cable will ensure that noise is eliminated as much as possible.
Also, if you have attached amplifiers to the audio system for your car make sure that the ground wire that you use for the installation of the amplifier is as short as you can possibly make it. The problem is created with the longer wires which will surely have more resistance than a shorter wire. So the longer the wire you use as the ground wire for the installation of the amp more will be the noise that would be emanating from the speakers because of the voltage drop which is caused by the resistance.
You may use noise filters that are available in the market. These noise filters help to reduce that is filter the noise that emanates out of your car audio speakers. These will surely reduce the noise that causes such a disturbance but will surely not make it disappear completely. However if the installation is done properly then there should not be this problem of the noise.
The number of ground loops that are created for example is very important. This happens when an audio ground is created in places that are not meant to be. The chassis ground and the audio ground should ideally be connected only at the source unit of the system, however this is not always practical though this is what theoretically should be. However, in most stereo systems in cars which have such a problem with the noise emanating from the speakers of the system, there are ground loops that had been created additionally during the installation process which become responsible for all the noise.
The next thing that you should keep in mind is regarding the quality of the audio cables that you use for the installation. The audio cable should be fully shielded and for that kind of quality you will of course have to pay more than usual. But a hundred percent shielded audio cable will ensure that noise is eliminated as much as possible.
Also, if you have attached amplifiers to the audio system for your car make sure that the ground wire that you use for the installation of the amplifier is as short as you can possibly make it. The problem is created with the longer wires which will surely have more resistance than a shorter wire. So the longer the wire you use as the ground wire for the installation of the amp more will be the noise that would be emanating from the speakers because of the voltage drop which is caused by the resistance.
You may use noise filters that are available in the market. These noise filters help to reduce that is filter the noise that emanates out of your car audio speakers. These will surely reduce the noise that causes such a disturbance but will surely not make it disappear completely. However if the installation is done properly then there should not be this problem of the noise.