This is an OEM stereo head unit radio for the 2009-2015 Mazda MX-5 Miata. The NH18 66 9r0A model is a perfect replacement for your current stereo system. Enjoy premium sound quality while driving your Mazda with this genuine Mazda part. The unit type is a unit and the manufacturer part number is NH18 66 9R0A. This car stereo and head unit falls under the in-car entertainment and in-car technology, GPS & security categories. Upgrade your car's audio system with this high-quality Mazda MX5 Miata OEM Stereo Head Unit Radio.