The detector in my video is a Cobra XRS9345. I am doing what mikeknoop and ruslan are suggesting: hacking into the LEDs and reading the device's idea of what it detects. The actual signaling is non-obvious and I intend to publish the code that interprets them once it's stable. One idea that I'm kicking around is building a kit that you can solder to your detector's LEDs.

I wonder how much market there is for a kit that requires the user to open up his detector.

Ari.