A. This audio cable for car audio system modification is designed for the modification of car audio subwoofers and power amplifiers, with a wide range of applications. B. It has good adaptability and is suitable for various car models. No matter what kind of car you drive, you can easily use this audio cable to upgrade your car audio system. C. In terms of materials, it is made of pure copper. Pure copper has good conductivity, which can reduce the loss during signal transmission, ensure the clarity and stability of audio signals, and allow you to enjoy music in the car as if you were at a concert. D. Its excellent design and high - quality materials can not only improve the performance of the car audio system but also bring you a more impressive auditory experience. Whether you are driving daily or on a long - distance trip, you can immerse yourself in the wonderful world of music. This product is mainly sold to regions such as Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East, and is well - received and trustworthy. At the same time, it has an authorized self - owned brand, ensuring the product quality.