This Infinity car stereo amplifier (model Ref-4555a) is a complete system that has been tested and is in working condition. It is ideal for enhancing the audio experience in your vehicle, especially if you're looking for a high-quality amplifier for your car audio system. With its sleek and compact design, this amplifier is a great addition to your car's interior and has the power needed to give your music the clarity and depth it deserves.
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