Audio Wiring / September 9, 2018 / Autumn Fournier.
Unfortunately, the increased efficiency found in the Class D car amp comes at a price. The switching of the transistors leads to distortion of the audio signals at high frequencies. If the owner of a car audio system wants to abolish the distortion in the sound from a Class D car amp, then that individual must use a low-pass filter.
The audio preamplifier has several different functions. Its primary function concerns conversion of the sound information carried by the audio system’s electrical signals. The analog sounds produced by the car radio or the CD player enter the audio system as low-level signals. These low-level signals travel through the audio system to a pick-up or a transducer.
The first wire you should run is from the battery to the trunk. Install a fuse on this wireless than 18″ from the battery terminal. If something happens, the fuse will blow close to the battery before anything can happen. The fuse holder can use install on the driver’s side strut tower.
You’ll need to run the wire into the passenger compartment. For this, you need an unused grommet, which is just a fancy word for a plug. You might find a large grommet and poke another hole in it. As a last resort, you might have to drill the firewall of your car and install an aftermarket grommet.