Specification:
1) With easy installation and removal, you can install it anywhere along your steering wheel.
2) This controller can be used for all head units which come with the steering wheel control wire and can support steering wheel control.
3) With 8 function keys to be set, this controller can meet all your needs on the common functions you use in a car.
4) All the functions are easy to be set on the controller when you enter the key learning mode in the factory setup menu of your head unit
5) The functions can be kept forever on the controller without being removed deliberately.
6) Being flexibly installed along the steering wheel as you like, this controller is easy to use and helpful to keep safety for your driving

Instructions:
1) Firstly 3 wires of the receiver should be connected with the head unit(black to black, red to red, white to the steering wheel control wire, and the longest wire as antenna doesn't need to be connected.)
2) Enter the key learning menu of the head unit to define the functions on the steering wheel controller.
3) The controller, as a head unit wireless controller, can be installed along the steering wheel.

Package included:
1x The volume control "+" "-",Move Previous/Next ,mute button
1x Mode,GPS,BAD,Phone(Dial/Hangup)
1x Receiver box