I've had no experience with the camcorder you mention, but .....
I commend you for showing as much interest in the audio as the video. I feel it is important for a lot of reasons, to have the native audio (available at least), for the final 'product'.
Many people just get a portable camera and because the audio is too hard to do, just plaster over the soundtrack with someone elses audio (usually rock music) in post production. Most well produced flying videos end up having a mix of native audio and other audio in the final production. And if the video is being used as an example or to teach, then the audio or a narration is very important.
There are many ways to get the audio, ranging from the simple 'microphone' in headset muff, to a separate digital audio recorder. In my case, I plan to use a small SDHC, 4 channel, digital recorder, with wired input from the audio panel.
JMHO - Zing away, music lovers.