I had to get a clock spring—in my case, for an Alfa 147—but it must be from a car that originally had commands. You will also need a connector that goes to the clock spring. In my case, I had to add three wires for the steering wheel commands, one positive wire for lighting up buttons, a negative wire (the same one as the negative for the horn), a positive wire for the horn, and two wires for the airbag. If your connector looks like this, I can help with the pinout. If not, you should get a wiring diagram.