gswhoops

I am having trouble playing music on the Avic-F90BT with the Iphone 3G. The syncing of the song tags install correctly. It shows the songs on the interface, but I cannot get it to work at all in terms of the volume. It seems as tho it is put on mute, but it doesn't say the volume is down on the settings. I also tried to use Apple ipod usb adapter, and I still don't have any luck. Does anyone know the solution?

I am getting mixed reviews in deciding to purchase a 90BT or a 900BT. I've heard that one of the main difference between the two is that the 90BT's Ipod cable goes bad in the back of the unit, they have to replace the whole unit if the wire cuts off for some strange reason, as it is one piece that is hardwired and sautered to the unit. Where as the 900BT its a USB port, and you can put a flash drive, or a Iphone cable to it. Is this true. Or are the connections completely the same?