Check the listing for details. Axxess AXDI-MB1 Mercedes Radio Replacement Interface. Condition: New. Listed at 94.99 USD. Product highlightsretains steering wheel audio controls with AXSWC adapter module (sold separately) retains factory balance and fade controls and retained accessory power (R.A.P.). supplies outputs (parking brake, reverse, and vehicle speed sensor) for a navigation or multimedia receiver supplies 12V accessory power designed for non-amplified factory systems or when bypassing the factory amp warranty: 1 year What's in the boxRadio replacement interface module LD-AX-XSVI-MB1 harness LD-AX-XSVI-MB2 harness Installation Instructions About this itemWritten by Crutchfield's Bob BihlmayerAxxess AXDI-MB1 The Axxess AXDI-MB1 wiring interface lets you replace the factory radio in select 2001-18 Mercedes-Benz, Dodge, and Freightliner vehicles, while keeping your steering wheel audio controls when used in conjunction with Axxess's AXSWC steering wheel control adapter (sold separately). You'll also keep your factory balance and fade controls and retained accessory power (RAP). The interface also supplies 12-volt accessory power and an illumination output, and provides the parking brake, reverse, and vehicle speed sensor (VSS) outputs you'll need to install a navigation or multimedia receiver. The harness plugs into the AXSWC steering wheel control adapter (sold separately) without splicing. This interface works in non-amplified factory systems or systems in which the factory amp has been bypassed.