Just finished this update last night on my 2011 Avalanche. I took the more direct approach and ordered the wheel, clock spring and steering column harness. Took me just over an hour from start to finish but I had done a steering wheel swap on my 2006 Corvette before so I knew what to expect. The write-up is definitely a plus for those that might not be as comfortable with this swap. Routing the new steering column harness took the most time as a few of the connections are buried below the dash and not the easiest to get too.
Tried it out this morning and it works like a champ. Just in time for our near zero weather and 5-7" of snow scheduled for Sat/Sun!
Was trying for the life of me to get this to trigger with the remote start / heated seats but the control modules for that functionality make it really difficult. Would need some decent logic to allow you to turn it off when the seats are on and vice versa. Pushing the button when I get in isn't that hard and not worth the extra effort.