HMI, CSM and Radio (ACM) Modules

WAMS stocks genuine OEM GM replacement modules for head unit interface (HMI), center stack module (CSM), and audio control module (ACM) radio systems. All modules are brand-new factory hardware, VIN-programmed specifically for your vehicle, and ready for professional installation. Whether you need a replacement radio module or want to upgrade your factory system, we have factory-perfect OEM solutions.