I finally installed my pair of Infinity Kappa 682.11cf's in the front doors. I had to modify the spacers to allow the speaker to fit flush. I had a pair of Infinity Reference 6832cf's in the front doors but moved them to the rear deck. It's a 100% improvement over the stock speakers.
What did you have to do to the Ford spacers to make them work?
I am considering the same speakers for my 2014 GT Premium.