So, all of the sudden I am not getting any sound from my soundbar. This is with the factory Alpine system. I have adjusted the fade, and when i go full back there is not sound. Centered, it is just from the fronts. Is this a HU issue, or maybe the factory amp? I had turned the fade to the front several days ago since my kids were in the back watching their tablets, and I am wondering if it just isn't adjusting them after that? Does anyone have any ideas for where to start troubleshooting?