I was able to flash just fine with an ebay cable.
Seller: smooth-dealer
Auction: "NEW USB OBD2 OBD-II Diagnostic VAG COM KKL Cable for 409.1 Audi/VW/Seat/Skoda."
However, when I tried to data log with RomRaider, the logs came up empty. There were column headings, but no data. Any ideas?
I'll try again and see what happens.