1Practical: The controller is universal fit with 6 buttons to meet the common operations of the car, easily control the car navigation and multimedia system. 2Multifunctional: The keys could answer the phone, control volume up, volume down, switch to previous song, next song, and mode switching. 3Wireless Control: After installing the receiver, it is easy to realize button control over Dvd player, improve driving safety, and easily operate the equipment in the car. 4Material: Made of Abs material, lightweight, colorfast, space saving, the curved design does not cause operating errors due to steering, and can be flexibly installed according to your preference. 5Installation: The receiver is mounted at the rear of the host. Red wire connected to Acc gray steering wheel control 2. Orange wire connect steering wheel control 1. Black wire connects to Gnd.