XF 1.1 Embed Music Track in Thread Post


I was wondering how this can be accomplished?
The web hosting company I work for has an Amazon S3 Online Storage feature that you can upload to, and for example, I'm using an mp3 file of a song remix I like.

The page of our feature looks like this: (basically just a browse-based sound file player:

Basically, something like this:<removed>​

Is that possible to do? I'm willing to have it so people can upload the file.

Also, I keep getting a "Security error" when uploading an mp3 file (even though I've allowed this in the ACP).

If anyone can help, that'd be amazing.