I just recently installed a F90BT in my 04 F250. I have also done a search and read the FAQ's trying to resolve my problem to no avail. I have plugged my iPod cord into the USB cable from the F90BT and also switched AV1 to IPod. When I plug the iPod in, it shows the album artwork and acts like the song is playing from the time that is counting down on the display, but no music comes from the speakers. Help.....