You can enter the Service Menus in a similar way as you did in the 3rd Gen. Press and hold the AUDIO button. At the same time turn the head lights on and off 3 times (The LCD will dim while the lights are on). To see the Diagnosis screen, Press and hold the APPS button. At the same time turn the head lights on and off 3 times By pressing and holding the APPS button, for several seconds, the LCD will go back the normal screen.
Naah, you're just messin' with me. Edit: I'm a bit embarrassed by this post now, was off my meds, giddy. Feel free to deride and heap scorn.
I found out that the microphone level is lower than my Gen3. When it's back at the dealer for the paint protection, I'll have them kick it up a bit. While driving, the service menus displays the stats.
