I installed a X930BT last week and noticed that the sound quality is pretty bad using the Pioneer IU51V cable. If I just plug a thumb drive with some music into the USB port, the sound quality is so much clearer. After reading around, I'm guessing the problem is the Pioneer cable is using the iPod's DAC. This is the first deck I've used in the past 5 years that did this and it sucks pretty bad. It's my fault for not doing more research, but I'm wondering if there's anything I can do with it. Is it possible to use the Apple composite video cable to bypass the iPod's DAC with the 930? All