Audio Wiring / September 10, 2018 / Autumn Fournier.
It is the first consideration when you install your amplifiers. Most people mount the speaker in the trunk for esthetic and safety reasons. It would help if you also considered the maintenance of your car when installing a car amplifier in the nose. Too often, people install systems that make replacing the fuel pump or taillight bulbs difficult. Keep in mind that mechanics charge by the hour for labor.
You don’t want to route signal wire next to power wire because that could result in noise entering the sound system. If power cable and signal cable must cross, cross them perpendicularly. Use well-shielded RCA cable. It will help prevent noise from entering the sound system. Ground the radio to the chassis. Connect the antenna to the proper antenna input on the radio.
The audio preamplifier also plays a role in the equalization of the signal. The preamplifier allows the audio system to correct for distortions in the sounds that are fed into that system. The equalization performed by the audio preamplifier allows the audio system to bring the car owner a quality sound.
Mono amplifiers can frequently offer one big advantage to the car owner with a pair of subwoofers. If each subwoofer has a 4-ohm resistance to the current flow, then those two subwoofers would fit safely in a parallel circuit with the mono amplifier. Such a wiring arrangement is commonly used by the car owner with a car amp.