ETKA catalong online: http://etka.auto2.ru/
 

Only goes up to 2005, with part numbers, english descriptions, some Russian text.. Found in one of the Bentley forums while trying to find a TPMS dach switch (Fits in blank spot to left or emergency flasher switch) and, if a different instrument pod is needed for TPMS. (
A3 uses ABS sensors for measuring tire diameter, so all that should be needed is the switch, and enabling with VAG-COM.. )

Unfortunately, this catalog doesn't show the switch..<ul><li><a href="http://etka.auto2.ru/">ETKA CATALOG</a></li></ul>

the 04 A3 uses the same fenders as the 06 sportback
 

looks like a different hood part number tho.

hood hinges are the same
 

btw I'm checking this by seeing what is stocked in the US vs what is listen for europe on that site.

lock carrier is the same

bumper shocks are different

Does your catalog show TPMS parts?
 

The TPMS switch is to the far left of the emergency flasher switch.
If it shows it, can you tell if the NAV-compatible instrument pod also works with TPMS?