As far as I know, there isn't a module for that. It's all vacuum operated, with the exception of the vacuum pump (in the trunk).
I thought your post (#4 in this thread) contained attitude...seemed like it, but you can't really tell with just written word - In my mind, I wash dishing out the same that was served. But, that isn't all that important in the scheme of things.
The alarm, and the doorlocks are and aren't connected - you will note two switches in the door frame by the hinges - one for the dome lights and one for the alarm (door opens, alarm sounds) There is however a switch of sorts, that is by the lock, that will turn off the alarm system before you actually ever open the door - so the alarm never sounds.

If you should decide to be curious, and check back here...have a look at the vacuum pump...there is circuitry in there (what it does exactly, I don't know - could just be pressure switches) but it's the biggest electronic player in the locking system itself.

Good Luck

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D