Hi,
having the same problem, I bought a cluster from the junkjard.
After replacing the whole instrument cluster, I had the usual anti-theft-problem.
But then I just dissasembled my cluster and the raplacement and only changed the center speedometer readout sektion. It works! I didn need reprogramming oder the "turn ignition on, turn ignigion off every 3 minutes" procedere. Nothing, just turn the key and the caddy runs as usual.
Dissasembling the cluster is not a big deal, just a few (7 or 8 ) torx screws.
Sorry for my bad english, but I live in Germany.