Just wanted to say thanks for this thread! I got my GoPro recently, bought the adapter and purple panda linked, and captured some nice audio! Prior I was using the built-in mic on another cam, and this sounds worlds better.
The mic was taped on top of the rear bumper right underneath the license plate. I was worried I'd get a bunch of wind noise but not much present in the clip.
Here's a clip from my last session at ECR this past weekend. I'm a little more than a year in tracking my F80 so lots of improvement to be had
