I tried the 458129 extension and it rang four times and then went dead. So I just went to the general questions on the automated thing and talked to someone at random. She didn't quite know what I wanted. She talked to someone ekse and they told me to look at the plaque on my car. Maybe they thought I had a Nismo. Anyway, I told her it wasn't written in my car anywhere so she talked to someone else. It seems they have some sort of official form to fill out to get the build number. Next week we'll find out if this works.
