I'm noodling with it myself and wonder if anybody else has gotten it up and running. I cut off the tweeter flange, ground off most of the terminal tabs and hot-glued it to a dowel that I turned to fit in the hole that goes through the Alpha 10. 24 ga. solid wires run through a hole through the center of the dowel, right out the back of the Alpha. The box is a little larger than stock, at 2 cu ft, with a 4" id port about 4.5" long. Might be longer, I forget the tuning now.I think they sound great, a little more focussed than stock, which was a nice punchy design to begin with.
Photos soon as I can.
John