It's a really warm coat, so it serves it's purpose there. The only complaint I have against the functionality of the coat side of things is that it doesn't have wrist gaiters. Also, the sleeves were a bit long. This kinda solves the lack of wrist gaiters, but it's also annoying if you're just sporting the jacket.As for the sound system, it was pretty pimp while I was riding. It was pretty annoying when I would unstrap to get on the lift. I guess if you extend your arm in the wrong way, it disconnects or something. It only causes the song to pause, so it's not the end of the world. Also, I took some gnarly spills while listening, and nothing seemed to break/damage. Overall, a cool jacket, but don't buy it for the Audex. If you can get it for a good price for just the coat, grab it with an extra incentive.
Also, TONS of awesome pockets.