WARNING: This page is about a different car, the 2004 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Mayday Circuit (1 of 2)
Fig 2: Mayday Circuit (2 of 2)
Fig 3: Navigation Circuit, W/ Rear Entertainment (1 of 2)
Fig 4: Navigation Circuit, W/ Rear Entertainment (2 of 2)
Fig 5: Navigation Circuit, W/O Rear Entertainment (1 of 3)
Fig 6: Navigation Circuit, W/O Rear Entertainment (2 of 3)
Fig 7: Navigation Circuit, W/O Rear Entertainment (3 of 3)