Upgrade your car's audio system with the VIBE Powerbox65.4M Amplifier. This market-leading Plug and Play amplifier is designed to seamlessly integrate with your BMW's factory stereo, allowing you to enhance your sound quality and volume without replacing your existing head unit. The POWERBOX65.4M is the most powerful Micro amplifier available, delivering a substantial 65 watts per channel, significantly outperforming competitors that typically offer around 35 watts. This increased power output enables you to achieve louder and clearer audio from your current speakers, or to further enhance your sound by upgrading to more powerful speakers.