WTurkey S4

My 2000 S4 symphony radio does not have steering wheel controls. My old car had the volume and station tuning buttons on the steering wheel. I would like to add these controls to my steering wheel. From what I can tell my radio will work with steering wheels with these controls but since my car isn't wired for it I need the wiring info.

Does anyone have info on how the steering wheel buttons wire up to the radio?

Thanks

C. O. Guy2

hummm