So, I'm finishing up installing my new U310BT (and I am *so* glad I didn't buy it for it's navigation capability, or lack thereof). I've got almost everything all working: the XM radio module, the steering-wheel interface, the USB to the iPod. The only problem I'm still stuck on is that the hands-free mic doesn't pick up my voice.
I've got it plugged into the jack all the way. I've got the mic on the dashboard, about 20" from my mouth, directly in front of it. The iPhone pairs with the AVIC... and even transfers my contacts. But, when I tell the iPhone to use the AVIC as the audio source,