AeroPod, PowerPod and Newton

John, one more question about the GT key. I don't need the feature of the Newton sending power to a Garmin. But I would like to use my existing 3rd party ANT+ speed/cadence sensors. Do I need the GT key to use 3rd party ANT+ sensors or is that functionality built in to the Newton as standard?

I have a Trek Speed Concept that I would like to mount the Newton on, to use with a DFPM for aero testing. As the Speed Concept has neither a conventional stem or bars, I'm not sure how I would mount it?