So i have A6 C5 from 1997, one of the first, straight from germany,  its a cable throttle variant so its probably ME3.8, right? Anyway, i was hoping to read SKC from somewhere(either ECU or cluster), since i only have one pair of keys and i want to program IMMO for the other set. I have 2 cables, one is some random FT232R OBD generic cable and also i have Vag k+can 1.4 (FT232R also). I also had a FT232BM blue cable KKL cable that i gave to my sister. I've tried them all, i can't connect via Vag commander(1.4-2.5) no matter what i do, i try to open up a K-line connection but it is unable to identify/connect. What i am able to connect with is the very old VWTool program, which works like a charm but i can't read SKC with it. I've tried other programs like EEPRom reader etc to pull my cluster info but they don't work either. So what should i do, should i try vagtacho? I downloaded the Vagtacho EPT and versions 1.1-1.5 from this forum but i've noticed that they use EPT for RT245 etc, which i don't have.
Also the connection with VWTool isn't that stable sometimes, it seems to reconnect sometimes, maybe something to do with baudrate(but shouldn't that be decided automatically, since its serial connection?).
I'm open to suggestions.

From my experience:
Desolder eeprom, read in eeprom programmer.