Hey Hitch, that's fine, fix those important things first. But it's nice we are a bit closer to a conclusion. The people need it including me, Google and mobileread has not provided a conclusion to the issue so far.
If that is true, that it has to go through Amazon PW. They could at least mention it in the AmazonKindlePublishingGuidelines.pdf. That PDF explains how to put audio but on page 74 it says that the audio tag is not 'Supported on KF8-Enabled Devices & Apps'. I'm not sure what to make of that, maybe they are just trying to say that audio/video .mobi files do not support kf8 functionality which is true.
<audio> Specified an audio content No