Hello, you are right about the steering wheel being the culpret.Pull off
the cover with the vw emblem.Just yank it off. Remove the nut,and the wheel
comes right off(22mm?).I think it is under the wheel that there is a thin
copper foil contact that has rubbed through.I replaced mine with a low
mileage one from a vw golf convertable that I found in the junk yard.Maybe
all contemporary vw's can supply a suitable replacement.I got intermittant
honks when I made turns. Finally, it started honking and would not
stop.What a pain.