Driving Audio Crossfade With Throttle Rotation

Hey Guys, I need to drive an audio crossfade with the rotation of a throttle (jet engine sound). Sadly, I’m inexperienced with Blueprints. If you could provide any advice or point me in the direction of some examples it would be appreciated.
The problem I seem to be having is capturing the rotation value of the LeverMesh (throttle) and driving the crossfade with it.
Here’s some examples of directions that I’ve tried so far but no luck:


So, I think I’m getting closer… Herre’s what I’ve got thus far. Any advice would be great, thx.