I bought a backup camera and I will try to see if this works... if not a very lucky 2010+ oem navi member will own one, lol...
Btw, I saw this earlier tonight on an Infinity website off of a 2009 g37 but have not tried it yet...
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “SETTING” button, turn the volume control
dial clockwise or counterclockwise for 40 clicks or more. (When
the self-diagnosis mode is starts, a short beep will sound.)
• Shifting from current screen to previous screen is performed
by pressing the “BACK” button.
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