Harmony C65 + HA-A400.4 Premium Speaker Upgrade for Ford Mustang 2015-2018

Premium speaker upgrade package built for the Ford Mustang 2015-2018. This kit combines Harmony C65 speakers with the HA-A400.4 amplifier to replace the factory audio and deliver a clear, more powerful sound. All components are the specified Harmony C65 and HA-A400.4 models for direct compatibility with the Mustang 2015-2018, making it a practical choice for anyone seeking a noticeable improvement over stock sound.