Wiring adapter for 2011 Grand Cherokee is now available. Part # 3045-P is shown on their website. Can also open installation instructions and it shows you how to locate the connector under the dash board.
If you ordered a factory towing package and have electric brakes on your trailer, this is the adapter you've been waiting for to connect your Tekonsha P2 or P3 controller.
Oops, called today but is still 3-6 weeks away