20w bus radio and amplifier circuit diagram

The picture shows a 20w bus radio and amplifier circuit, which is a bus radio and amplifier circuit using TDA2005S dual low-frequency power amplifier integrated circuit. The input terminal in the picture can be connected to the low-frequency voltage amplification output stage of a microphone or radio. Each TDA2005S outputs 10W power and can carry 4 speakers. The two outputs can carry 8 speakers, which can be placed in different locations in the car. The total output power can reach 20W.