A:AnswerNo!, you don’t.
It’s just a newer one with all that you would to install.
If you have Bose and OnStar, I believe there is one that is much less from the same company.
P.s. in my Best Buy when I purchase it on line and did a store pick up there was 2 items missing.
It turned out that the kit doesn’t include the attenna adapter, when in fact that they show you a complete package and you don’t even get, it’s an extra 13.99 for the adapter. Can you say double dipping.
A:AnswerMy Suburban had Bose and steering wheel controls. My installer told me I had the right and therefore more expensive harness so all that worked easily. So am GUESSING there is another, less expensive one, available. Can you go to the store and talk to an installer? Good luck
