WARNING: This page is about a different car, the 2011 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: USB Adapter Without Navigation Circuit Diagram (Page 150-5)
Fig 2: USB Adapter Without Navigation Circuit Diagram (Page 150-6)
Fig 3: USB Adapter Without Navigation Circuit Diagram (Page 150-7)
Fig 4: USB Adapter Without Navigation Circuit Diagram (Page 150-8)
Fig 5: USB Adapter Without Navigation Circuit Diagram (Page 150-9)
Fig 6: USB Adapter Without Navigation Circuit Diagram (Page 150-10)
Fig 7: USB Adapter Without Navigation Circuit Diagram (Page 150-11)
Fig 8: USB Adapter Without Navigation Circuit Diagram (Page 150-12)