Scosche Fdsr Stereo Replacement Interface for 2007 and Up Ford Wiring Harnesses 2007 -up Ford Stereo Replacement Interface FDSR 2005 & Up Select Ford Can Bus Stereo Replacement Interface Allows Retention Of Rear Seat Entertainment (Rse), Thx Ii Option & Factory Rear Aux-In Functionality Data-Driven +12V Switched Acc Power Wire For Aftermarket Unit +5V Regulated Turn-On Output For Factory Amplified Subwoofers Park Brake, Reverse Light, Vehicle Speed Sense (Vss) & Illumination Outputs