WTB: Toyota Yaris audio control button

[CTScott]

You will have to track one down from one of the markets where it was offered (Japan is the only one I know of off the top of my head). You will need the steering wheel controls, the airbag (since it is a different shape) and the spiral cable (since the audio controls need more wires than the standard Yaris one has within it).

Another option is to use a steering wheel, airbag and spiral cable off another Toyota vehicle. There is a recent thread where someone did this with a Camry steering wheel.