Car audio system (speaker system with amplifier). 🔊🚗 In the picture: • Kenwood amplifier, labeled approximately 1000W. • Amplifier function: Boost the audio signal from the car stereo to give the speakers louder and clearer sound. • Four oval speakers (6x9) mounted on a single board. • These speakers are often installed in the rear shelf of the car or in a special box like the one in the picture. • Connection wires: • Thick blue wire: Likely the signal wire (RCA) from the stereo to the amplifier. • Small transparent box: Fuse to protect the electrical system