Hey guys (and yes, I'm a guy)! Sorry for the delay in response. Lots of activities with the holidays and such.

As for the seat belt buzzer, I tried three or four times and it did indeed work for me. Maybe it only works for certain revisions of the car or something. I can't see any reason why it wouldn't work for you as it has for me. I bought my TCH in August so I don't know if that gives any more info, but my TCH is fully loaded with NAV and remote start.

Interesting link regarding the UN-buckling of the belt, but I can try to see if that works in mine as well.