This is the button that I was thinking of that has only 5 functions for the radio only:
I think the issue with the cruise control is that there are variations across the years. We know that 2008 is very different than 2009. There might be other variations from 2009 onward. What I recommend and what is described in the first post of the thread is that you put your original cruise control button and harness into your new wheel (with the second cutout for the media buttons) and then pin the extra wires for the media buttons into it. The picture I posted just above should help. In your original harness the connector that leaves the steering wheel should have empty wire connector pin holes in the spots that are designated for the two radio wires and the two sync wires. You only need to add the two radio button wires. An then you will need to add these on the clockspring connector on the steering column and run them over to the radio. These wires are not present leading from the clockspring connector over to the radio if you did not have the media buttons installed from the factory.