Audio Wiring / September 6, 2018 / Victoria Tobias.
Route the power cable from the battery through the passenger side of the car to the amplifier in the trunk. It will prove most natural because the battery is commonly on the passenger’s side of the vehicle. You will have to feed the power cable through a rubber grommet on the firewall.
After connecting the speakers, run the wires to the amplifier and connect the positive wires to the positive inputs of the amplifier and the negative wires to the negative inputs of the amplifier. When wiring speakers together and to the amplifier, you need to consider the impedance, or ohms, a rating of the speakers as well as the ohms load of the amplifier. Amplifiers are constructed to “see” a specific ohms load. If the amount the amp sees falls below what it is capable of handling, the amp will shut off.
There are manuals sold for easy car amplifier installation. However, following some easy steps will ensure proper installation. First, is to fit a wire that goes from the car’s battery to the trunk where the amplifier will be placed. The cable will need to go from the passenger side, under the carpeting, and under the seats. The car’s instruction manual will show how to remove the seats to get the wire underneath. Once this wire is in place, the car amplifier can be connected. It is effortless but can take some time to run the wire through the car. Seat removal can take some time
Run the speaker wire on the same side of the car as the signal wire. Connect the speakers in either a parallel or series configuration. A parallel connection is when you connect each speaker’s positives and each speaker’s negatives. A series hook-up is when you compare one speaker’s negative to the second speaker’s positive.