The 9W7 is p/n 7P6-035-730-C (at least for the US market) with Hardware 008 and Software 6600.
The 9W2 I had was a 1K8-035-730-C ( Hardware 005; Software 0440) in my US delivered 2010 Jetta SE 2.5L with Tiptronic.
Yes, it seems odd that the part number changes only with the first three characters. My very limited experience was that the first three characters identified which vehicle was intended for the part. The fact that the last digits are all the same was a bit disconcerting to me when I placed the order. But what I received was exactly as I had hoped to get with all the features I wanted.
I'm beginning to wonder if the XXX-035-730-C has simply been updated with new internal hardware and new software.
Here's a picture of the 9W2 label (click for a bigger picture):
I did not take a photo of the 9W7 module before the install. But I can guarantee you that the 7P6-035-730-C is what I installed in my US delivered 2010 Jetta SE 2.5L with Tiptronic.
BTW...I found that with the proper voice commands and just using the PTT (microphone) button that I can even change the "voice tag" for a phonebook entry...without access to the MFD+ menu (because I do not yet have the Hi-line cluster installed). That is, rather than using the "text to speech" reading of my phonebook entries, the 9W7 will allow me to record a new voice tag and play that recording back as it reads the phonebook. This can be a different recording from what is in your actual phone (if you've made a voice tag in your phone).
Also...(this is a clip of a post I made elsewhere...)
The voice commands for the 9W7 are just a bit more sophisticated than those of the 9W3. The 9W7 can read your typed phonebook entries and compare your spoken words to its interpretation of the typed words in your phonebook. Or you can make your own voice tags for a phonebook entry via the MFD+. And the 9W7 can speak your phonebook entries with its "Text to Speech" abilities.
The "Voice Recognition" and "Text to Speech" functions work quite well, although there is one odd anomaly which VW should be embarrassed to have let through their quality control...
When the 9W7 speaks the work "Phone" it says, "Phon-ee." So "Phonebook" or "phone book" become, "Phon-ee-book."
Now you'd think that of all the words they'd check for proper interpretation, that one word would be correct! This applies to both a word in your phonebook and to the word "phonebook" in the 9W7's own help menu which the system speaks upon your request (by saying, "HELP" at various times in the dialog you can have with the system).
I have the entry "Home Phone" in my phonebook. The 9W7 speaks this as, "Home Phon-ee." The word "Home" is spoken correctly. Also, I have a phonebook entry for the name "Hope" which is pronounced correctly. I've even experimented with the word "Hone", and it is spoken with a silent "e". Likewise, the word "fone" is pronounced with a silent "e"..
