So for my new Sierra headset, I'd like a holder for the controller. My last ANR headset had a very simple control box with just an on/off switch, so I had it velcro'd to the bottom of the panel. The Sierra controller is a bit more complex, with volume and Bluetooth controls, so I want it to be more accessible. All the holders I can find for sale either attach to the window with a suction cup, or are hard-mounted to the panel. Not what I want, and they sell for $25-$50 or so.
Presenting the Half-Fast 0.0003 AMU Headset Controller Holder.
A little bit of roof flashing plus a rubber band puts the controller by my left knee, out of the way yet easily accessible, with the cable routed over my left shoulder. I'll clean it up a bit, round off the sharp corners and tighten the bend a little, maybe replace the rubber band with a strip of Velcro, but as a proof-of-concept it works just fine.
Patent pending.