what's this part#?
 

Hello,

I had a red indicate light on the nav, dealer said there was a post about this problem on their bulletin board and needed to replace TCU unit.
Picked up my car today, and invoice papaer shows me they replaced "RMFD Telematics CTRL Part# 1 84-10-9-120-844".
what is that? that's a new version of TCU unit part#?
I couldn't find it from realoem.com
any ideas? :dunno:

http://www.xoutpost.com/bluetooth/225...-tcu-help.html
Some previous info...