1997-2005 MERCEDES ML/GL CLASS FIBER OPTIC INTERFACE
You want to upgrade the stereo in your 2006-11 Mercedes-Benz M-Class, but you don't want to lose important factory features. Scosche's MZ20AR interface retains the steering wheel audio controls, along with the factory amplifier with its fiber optic controls. It also maintains the 12-volt accessory output, as well as providing the navigation connections, including reverse, speed pulse, and parking brake, that you'll need to install a car stereo with GPS.