July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Section 16 (System Wiring Diagrams): Radio
WARNING: This page is about a different car, the 2002 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Base Radio
Fig 2: Premium Sound Radio Circuit, Harman Amplifier (1 of 2)
Fig 3: Premium Sound Radio Circuit, Harman Amplifier (2 of 2)
Fig 4: Premium Sound Radio Circuit, Lear Amplifier (1 of 2)
Fig 5: Premium Sound Radio Circuit, Lear Amplifier (2 of 2)