Sort of an odd question:

I've got a 2004 Silverado with a 'regular' steering wheel (no radio/comp controls). Many months ago I was told that I need to get the appropriate steering wheel and computer program if I want to have the controls on the wheel. I have the steering wheel finally (yeah ebay). I was informed by the seller that I need a clockspring as well that supports the controls. I guess my question is, does anyone know the part number of the appropriate clocksping or how I could tell if my vehicle already has the right one?

Thanks

 

bump, trying again.