Nope, although they are identical in looks and connectors, the B is Bosch CAN for the older RNS-D and the C is infotainment CAN compatible with the RNS-E.
But I can sell you my old B tuner if you'd like to try it.
A forum community dedicated to all Audi owners and enthusiasts. Come join the discussion about performance, modifications, Quattro systems, turbos, troubleshooting, maintenance, and more!