From the research I have done on the 2011, the controller will work if you have both connectors under the dash. However, you will be missing a number of features:
-Choosing between Light and Heavy brakes, which seems like it is a form of automatic gain adjustment.
-EVIC display messages and feedback.
This member has one that he installed after the fact and says it works fine.
Hopefully in the next month I will be picking one of these up. Its only about $100 and I've wasted enough time researching it and finding no solid answers. I'm going to try it and if it doesn't work, re-sell it.