∗SiriusXM Promotion - Get 3 Free Months SiriusXM Streaming Service Features:2. MA112 Stereo Head Unit - AM/FM/BT Bringing modern technology and style to the boating industry with the Marine Audio MA112 App Ready Bluetooth Stereo.8-inch display is viewable in direct sunlight and is surrounded by control buttons with white LED backlighting. The stereo is also App Ready, allowing boaters to take control of their tunes directly from their smart devices with the Marine Audio app for iOS and Android devices.