I had this done.
Had a guy with abrites do it.
It cant be done with either vagcom or vagtacho, B6 with RB4 encr. can be done with vagtacho. B7 has RB8.
The guy said it probably is best to get one as close as possible to your own model, if you check out etka, there is a ton of different revisions/models.
I vagcommed my partnr., and found the equivalent but just with color dis. It takes some time to see the logic, but its there.
Bought a used speedo with correct part.nr. and paid the guy about 100 pounds to do it. Its a complete clone of the original one.
I just print screened the coding of the old one, and coded the new one after swap. Works perfect. View attachment 234347 View attachment 234348