Sew your Feather to your wig using the mounting holes. It works well to sandwich any extra wires behind the feather, but be sure your USB port is accessible.
Add a battery pocket made from a scrap of fabric or netting.
Sew wig clips into the front and sides of the wig. The added weight of the electronics and dreds may make it slide off your head otherwise. Wig clips are beautiful things.
Since I dance pretty hard in my wig, I also added a little scrap of oilcloth over the Feather, so it's not in any danger of shorting out if I sweat or wear the wig with damp hair.
Finish up by adding some ribbons or flowers or whatever your imagination desires to hide the zip ties at the top.