what firmware version are you running?
The RCD330 is running 5516, but it is currently not connected to anything since I need to install it in the Tiguan. I am waiting for my harness adapter to come in the mail.
5516 isn't bug free, no matter how much the seller wants you to believe that it's the best thing since sliced bread.
The bug that I can confirm is that if you are using Android Auto, and you turn the car off without first unplugging your phone, the radio WILL prompt you to pair your phone again on the next start up. I find it to be a minor enough bug considering the upgrade in sound quality from 5413.
I think there is also a bug in it where if you use Google Assistant while listening to spotify/Google Music/Whatever music app, the audio will go to crap because it will switch to low bitrate mono audio via the front two speakers only (since this is what the assistant uses to speak). The way to get it back to normal seems to be to switch to a different audio source (media in, radio, etc.) and then switch back to Android Auto. I do not use streaming apps though, so this does not affect me much and I haven't experienced it myself.
On the topic of installing this thing into my 2016 Tiguan S:
I am reading conflicting information about the reverse cameras though in 2016+ cars. Do they work without changing anything or does the camera still need to be replaced with an aftermarket component one? Someone said that their 2017 Jetta did not need anything changed out?