When replacing your factory radio, data and display retention(DDR) interfaces is your needed stereo replacement interface, as it allows vehicle info and settings to be displayed on aftermarket AV/AVN head units and retains adjustment by factory buttons such as HVAC (Heating Venting Air Conditioning) and steering wheel controls. Our Custom Fit Data / Display Retention Interface will provide you with visual display of adjustments make to factory climate controls, factory parking sensor indication and installation and navigation outputs for aftermarket integration. It will also retain steering wheel control and factory amplified sounds system functionality. In addition to that DDR Interface maintains access to vehicle configuration settings such as steering wheel controls, time and date settings, sport mode settings, climate and air quality, main instrument information, park assist and many more.