Not Slovak, Scottish but I have a Slovak Teta.
Audi sell a set of roof bars the part number is 8P0071126B. These are advertised as being for 2003 onwards however I think there is no difference between a 1999/2000 car and a 2003 car body so I would check with them to see if it will fit.
If it does, I think that Thule carrier accessories fit the Audi roof bars.
If this will not fit then I know that Audi definately made roof bars for the A3/S3 before 2003. You might have to check ebay or online somewhere else.
oh sorry, I thought that your are slovak because you send slovak link to my thread about roof carriers. Do you think that is possible put some roof carriers to 3 door audi S3?
Nie, ja nie som v Slovensko. Nehovorím Slovenské
nazdar.. ty si zo slovenska? aka nahoda ze slovak mi pise na tomto zahranicnom audi fore na tej slovenskej stranke co si mi poslal na tie nosice tam pisu nieco HAPRO specialny uchytavaci system.. ty poznas tieto veci, alebo len stranku si nasiel?