That's a great looking ride dude. Sounds awesome.
And that sound doesn't add to the discussion, to be honest.
Pop your bonnet and look at the belts while the engine is running. Try to spot any obvious problems. Sometimes you may see a belt moving too much laterally etc.
In any case, I think you've exhausted our abilities to diagnose this via computer. You gotta get under there and start working on it. If you've done that, or lack the skills, you'll need to bring your car to a workshop for a diagnosis and repair.
For good measure, please pull the codes from your car. It is unlikely that anything relevant would be there, but you never know.