Depth and powerful sound are important for good quality of music. Speakers can be installed at various places inside the car like door panels, dash and rear decks. They enhance the sound effect for higher notes. But to enjoy lower tones adding a sub woofer to a factory stereo is the best choice. Let us see how to do that now.

First we look into list of things needed to complete this work. They are trim panel removal tool, speaker wires and Philips head screw driver. First we should remove the connection of ground cable with the battery of the car. Usually the negative lead of car battery connects the car frame. To do this we shall take the help of Philip head screw driver which loosens the clamp of the cable connected to the negative lead of the battery.

The next step is to search for the amplifier in the vehicle. In most cases it is factory made. The manual which is issued along with the vehicle by the manufacturer is to be referred often. The sub woofer is placed either in the car area in the rear end in the case of hatch backs or SUV or in the trunk of the car. The speaker wires are then connected to the corresponding outputs that is positive and negative ends of the amplifier.

Fourth step is very important. The speaker wires should be connected with the positive and negative terminals of the amps correctly. The next step needs some attention. The wires of the speaker should be routed to the place where sub woofers are present. Suppose if the location of sub woofers is not near the amplifier then wires can be taken under the carpet of the vehicle. Use trim panel removal tool for prying of panels at the openings of the door. The trim panels can be replaced by hand itself after laying the wires under the carpet.

The carpets are lifted and the wires are routed through this. Hiding the wires gives a custom look and avoids clumsy look. The trim panels are replaced manually. To fit them properly, pressure must be applied uniformly through out the panel’s length.

The positive wires are then connected to the positive terminal and in the same way the negative terminals connected with the negative wires. That is in general corresponding connections between sub woofer input and the speaker wires are made. At last a re connection is established between the vehicle battery’s negative lead post and the grounding cable. Then the cable clamps are fixed in its position and re installed using a Philips screw driver.

This article would have provided a complete answer on How to Install a Sub woofer in a Factory Stereo with step by step instructions without the help of professionals to do the job.

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Before we look at the steps for doing the job we should understand why speakers would not be sufficient to power the music. It is because speakers can improve the effect of sound of having only higher tones. The intricacies of lower notes , tones and bass can be taken care only with sub woofer.

This installation can be completed in five steps after which we shall discuss some useful tips. We should be ready with the following things for installation of sub woofers. They are amplifier, wire strippers , electrical tape. Amplifier kit , line out converter , sub woofers and box.

The stereo is then removed out of the dash. This is different for each vehicle and can be done using a manual of the car. After the stereo is removed, the wiring of the stereo is disconnected. The wiring can be either single or many attached together. The stereo is then connected to the harness adapter from the vehicle. The harness has markings that show how the connections have to be made.

Then, the cable for the signal and the lead for turn-on are connected to the harness adapter. The lead for turn-on is present in any wiring kit. These two cables are then touted to the vehicle’s floor through the rear part of the stereo. The carpets can be lifted using some tools for removing it. The cables can then be passed through the floor carpeting to the battery. It is advisable to do in opposite directions in order to minimise the interference.

The line out converter is successfully installed . We now need to understand what is the function of this. This LOC eliminates the need for replacement of head unit of factory as it enables the connection of RCA cables with our amplifier. For safety purposes grounding should be done. So locate a bolt made of metal. Connection is made between ground wire of the amplifier and metal bolt.

There is one optional thing which can be done that is provide proper insulation by wrapping the connections fully with an electrical tape. This is for providing a safer working and handling environment. Before cutting the wire just leave some more extra wire to use it when a proper crimp is not done. The wire ends are to be handled properly or else the ends may cause holes or it may hurt your finger.

One should always know How to Install a Sub woofer in a Factory Stereo , as it is one of the most important tool.

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