OBD2 Interface for Passat 3BG

Hello everyone!

Before I start soldering and building a new circuit board for each, I wanted to ask if anyone has already tapped into their OBD2 port on their Passat (Variant) 3BG and what circuit board they used. Then I could probably replicate this board.

Additionally, I would be grateful if someone could send me the schematics and the board for version 2.2 of the PCB.
Email: Moritzes@gmx.de

Thank you.
Moritz