WARNING: This page is about a different car, the 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Radio Circuit, W/ Navigation & Amplifier (1 of 3)
Fig 2: Radio Circuit, W/ Navigation & Amplifier (2 of 3)
Fig 3: Radio Circuit, W/ Navigation & Amplifier (3 of 3)
Fig 4: Radio Circuit, W/ Navigation W/O Amplifier (1 of 2)
Fig 5: Radio Circuit, W/ Navigation W/O Amplifier (2 of 2)