ACDelco GM Original Equipment Audio Amplifiers are part of the audio system, and are GM-recommended replacements for your vehicle's original component. The purpose of the amplifier is to increase the power ofvoltage or current signal. The audio amplifier boosts the signal and sends it to the appropriate speakers. These original equipment audio amplifiers have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠