How to Install a Car Amplifier

Adding an amplifier is a great way improve the sound quality of your system. It can add enhanced detail and realism as well as volume and impact. The transformation of sound is unmistakable and will make driving much more enjoyable.

Before installation, determine a good place to locate your amplifier. Good places are usually under a seat, in a trunk, or cargo area. Amplifiers have a tendency to get warm and will need a location that has enough space and ventilation.

Since most amplifiers systems do not come with wires, you will need to purchase an amplifier wiring kit. Since the wires you install will be connected directly to the battery, disconnect the negative battery terminal to prevent electrical damage. Run the main power cable from the battery to the amplifier location. Connect this wire to the positive battery terminal. Be sure to remove the fuse located on the power wire before installation. Route the entire power cable through the firewall, through the door, and under the carpet to your amplifier. You may need to remove the back seat when routing the wire into the trunk.

Next install the signal cables from the receiver to the amplifier. Run the signal cable on the opposite side of the power cable. Connect the amplifier turn-on lead to the stereo and install it along with the signal cable. Connect both cables to the amplifier.

You will need to install a ground lead to the amplifier. This wire should be short and connect directly to a metal component of the car. This could be the chassis or frame of the vehicle.

Your final connection will be from the amplifier to the speakers. Use good quality wiring for your speakers. Different quality speaker wires will have a noticeable difference in the quality of the sound. 12 gauge wire is the recommended size for cars. If you need to make longer runs in bigger vehicles then use 16 gauge wire.

When all your connections are complete, you are ready to install the fuse located near the battery and reconnect the negative battery terminal. Be sure to reference your owner’s manual for the optimal settings on your amplifier.

Be sure to reference the owner's manual for optimal settings on your amplifier