Scosche Wiring Interface

You want to upgrade the radio in your 2006-11 Mercedes-Benz without the Harman Kardon factory amp, but you don't want to lose important factory features. The LMZ20 interface retains your steering wheel audio controls (if present) and your factory phone buttons, if you're installing a car stereo that supports those features. It also provides the 12-volt accessory output, as well as the connections needed for a car stereo with GPS, including reverse, speed pulse, and parking brake. Warranty: 1 year.