With my one, I have a mini-USB to headphone jack which goes into the mini-USB marked "bluetooth" (of course...)

Set the Honda stereo to "CDC:4" and it'll say 8:88, but it'll take the audio output from the iPod and amplify it. I should take a photo but it's cold and dark outside .

The USB input is CDC:3, and I think the SD card reader was CDC:2 but I don't use SDs very much.

Tim