Fangrui Product Details 1.the Latest Designs Model, With Beautiful And Generous Appearance, And Has Stable Performance. 2.universal Product, Suitable For All Car For Android Dvd Players, And Suitable For All 2 Din Car Dvd Players. 3.wireless Remote Control Player, Allows You To Answer Calls, And You Can Add Subtitles, Bring Much Convenience For You. 4.all Main Functions Can Be Customized To Set Its Functions, A Total Of 6 Buttons Can Be Customized To Set Functions. 5.improve Driving Safety, Easy To Install, No Complicated Tools Required, Save Your Precious Time And Effort. If Your Car Dvd Player Has Steering Wheel Control Function, This Product Will Be Suitable For Your Car Dvd Player Use. Suitable For Car: It Is Universal ,it Is Suitable For Most Of The Rear-mounted Navigation On The Market. Installation Instruction: 1.unload The Dvd Player. 2.pls Find The Steering Wheel Key Control Plug (key 1, Key2) And Acc With Ground Wire Of The Dvd Player. 3. Then Checking The Note Of Each Color Line For The Remote Receiver: A.red Line A