Automobile power amplifier with high adaptability

The invention belongs to the technical field of automobile accessories, and discloses a high-adaptability automobile power amplifier which comprises a shell, an opening is formed in the middle of the shell, placing openings are formed in the two sides of the shell, steps are arranged on the upper side and the lower side of the opening of the shell, guide columns are arranged at the corners of the steps, and the guide columns are arranged on the upper side and the lower side of the opening of the shell. The shell is provided with steps, the steps are matched with the guide columns to be slidably provided with connecting plates, the connecting plates are internally provided with PCBs, the connecting plates are provided with interfaces connected with the PCBs, the number of the connecting plates is two, the corresponding interfaces are provided with at least two specifications and models, the upper side and the lower side of the shell are slidably provided with top plates, and the top plates are arranged on the