Upgrade your factory radio while retaining important OEM features with the CRUX SOCVW-21 Radio Replacement Interface. Designed for select Volkswagen vehicles, this interface allows for the installation of an aftermarket stereo while maintaining compatibility with factory amplified and non-amplified audio systems. The SOCVW-21 also provides navigation outputs including reverse, illumination, and vehicle speed signals, making it an excellent solution for multimedia and navigation receiver installations. navigation and multimedia integration signals Eliminates the need for extensive vehicle rewiring Maintains OEM audio system performance Reduces installation time and complexity attroporte (2004-Up) equipped. Does not retain factory steering wheel controls. For steering wheel control retention, CRUX recommends the SWRVW-52 interface. Outputs: Reverse, Illumination, Speed Signal Accessory Output: 2A Max a clean, professional installation.