1. This is a junction box suitable for the modification of automotive audio amplifiers. It features a unique design with three inputs and four outputs, as well as one input and four outputs, providing a convenient and efficient solution for the wiring connection of automotive audio systems. As a wiring concentration and distribution device, it helps users easily achieve reasonable wiring distribution, making the modification of automotive audio simpler. 2. It is made of zinc alloy. This material is not only strong and durable but also has good corrosion resistance, ensuring stable use in various complex automotive environments and greatly extending the product's service life. 3. One of the significant advantages of this junction box is its versatility. It is suitable for various types of vehicles and can be perfectly adapted to any style of car, with a wide range of applications. 4. Whether you are a professional automotive audio modification shop or an enthusiast keen on self - modifying automotive audio, this junction box is a good choice. It can effectively improve the performance of automotive audio and bring you a better auditory experience.