Can someone that has an MP3 rack answer a few questions for me? Is the rack aluminum or steel? Can you post a picture of what the underside looks like? I am building my own and I am trying to decide if I need supports under it like the Honda has. And lastly, what's the dimension from front to back in the center of the rack? These things are hard to come by and it's easier just to make my own.

Thanks in advance,
Jeremy