http://www.renntech.org/forums/index.php?showtopic=1578
http://www.renntech.org/forums/index.php?showtopic=10623&st=0&p=51902&#entry51902
I have also been told there is a bug in he current PIWIS software and it will not turn on. So the dealer will have to use an older PIWIS software version, or use a PST2.
Then, after all of that, if it is turned on you will not see anything on your year until you retrofit a switch or the stalk.
I watch when it is turned on for 2003-4. When the cluster coding has in fact been changed then the trip odometer resets to zero and you hear a gong sound from the instrument cluster.