I'm sitting here in my living room looking at two different eject boxes:
1) 84-21-6-933-415 (has date 8/04/03 on it)
2) 84-21-6-946-063 (has date 1/12/04 on it)

Both supplied by Crevier. The one ending -415 was NOT compatible with 8/04 build 2004, although I did successfully install the -056 combo BT/Assist TCU.

I'm hoping the -063 works...they are similar but clearly diffferent parts. Also, the FAKRA connectors seem to be identical on both.

p.s. they BOTH have pairing buttons....