The only one i have seen it work with is the HD 3-pocket pouch where the left side pocket can be removed....it snaps on and off. You mount the GPS fairing mount in the space where that pocket was. I have one on my 12 Ultra and my 10 EG Classic before that, works out great.
The three pocket fairing pouch has the removable left pouch to accommodate the mounted gps. I have the 660 mounted on my fairing and I also have the three pocket pouch. I have to snap off the left pouch even without the gps mounted because the mount itself is in the way.