I'm trying. It's not easy to get the soundtrack without the wind overwhelming it. I tried mounting the microphone inside my jacket, inside my helmet, etc. But the only real way to get do it right is with a dedicated microphone buried underneath the seat then somehow synchronizing it to the video footage. I'm not quite there yet.
Having said that I enjoy the music soundtrack. Watching other people's vids, I feel that it completes the mood of the video. I'm learning as I go though and plan to make more creative videos with engine sounds only. The editing part and stitching them together to make the video coherent and interesting is the hardest part.