Alright, I got my car last year and here are all the things I had to learn about my 2006 A8L. I sum it up here if one may need to know.
Program Rolling Codes Garage Door
Program Bluetooth NON-Iphone
Program Bluetooth with Iphones
Basic Voice Command Bluetooth Phone and Navigation
In case the MMI needs to be reset and enable hidden menu if you have VCDS
Update MMI from 1190 to 3360
Update MMI from 3360 to 4160 (you can go straight from 1190 to 4160 but I didn’t do it)
Add AMI original OEM or after market like mine
If the trunk lid doesn’t pop up, either buy a updated version motor for $500 stronger pull or fix with a spring like mine (it’s been working for almost a year now).
There are other things can be done to the car, but not really important to me.