Como não mencionas se é uma versão HIGH ou LOW deixo-te aí os dois esquemas dos comutadores, se a tua B6 tiver aviso de lâmpada fundida a tua é uma HIGH, por isso segue o segundo esquema, se for LOW segue o primeiro ok?
Se for OEM, é CLH (Coming Leaving Home) se for aftermarket WHO CARES
PS: em vez de o ajudarem é logo ao ataque

LOL
"LOW version ( 8E0 941 531) "
Pin 1 - Power supply for low beam and parking lights after switch (EC) [black / yellow]
Pin 2- Power supply for fog lamps (WE) [black / white]
Pin 3 - x
Pin 4 - Power supply for low beam (yellow) (WY)
Pin 5 - x
Pin 6 - x
Pin 7 - x
Pin 8 - Power supply for front fog lamps (WY) [2x white / blue]
Pin 9 - Rear fog lamp power supply (WY) [gray / white]
Pin 10 - Light switch size [brown]
Pin 11 - x
Pin 12 - x
Pin 13 - x
Pin 14 - x
Pin 15 - Power supply parking lamps, xed from battery (EC) [red]
Pin 16- Power supply for parking lamps (WY) [gray]
Pin 17 - Power supply for the light switch [gray / blue]
"HIGH version (8E0 941 531 A)"
Pin 1 - Power supply for low beam and starter lamps (EC) [black]
Pin 2 - Power supply for fog lamps (WE) [red / yellow]
Pin 3 - ??? [purple]
Pin 4 - x
Pin 5 - x
Pin 6 - x
Pin 7 - x
Pin 8 - Power front fog lamps (WY) [white / green]
Pin 9 - Rear fog lamp supply (WY) [gray / white]
Pin 10 - Weight of the light switch [brown]
Pin 11- Power supply for low beam (WY) [yellow]
Pin 12 - x
Pin 13 - x
Pin 14 - Power supply for parking lamps (WY) [gray]
Pin 15 - Power supply for parking lamps, xed from battery (WE) [red]
Pin 16 - x
Pin 17 - Power supply for the light switch [2x gray / blue]