Hi Douglas and Jeremy
We received a lot of questions about this and there seems to be some confusion-here’s how it works:
All 8 pins in the Lightning connector are routed through the Flexible Cable to an 8 pin USB 3.0 connection at the bottom of the cable. When the Flexible Cable is docked in the Foundation Dock the audio will play through the Foundation Dock speaker, or through the rear-facing shielded audio line out, and the microphone in the Dock will work in conjunction with the microphone in the iPhone. The Lightning connector does have digital audio out and the Foundation Dock will convert this to analog for the internal speaker and line out.
When using the Flexible Cable and an iPhone in your car and you are plugged into our car charger, or any other cigarette lighter USB charger, only the charging function will work. No cigarette lighter USB charger will transmit audio. If you desire audio from your iPhone to play through your car speakers, you will have to use bluetooth or aux line out.
As mentioned before, we have added a through hole in the bottom of the iPhone 5 cradle for the aux line out. Hope that clears it up for everybody. Please let us know if you have any more questions.