It is commonly known fact that the popular method for disabling reverse beep does not work on European Prius. In Poland (my home country) they sold probably 300 of them and dealers don't know anything about this car. Every single question about any modification to Prius is always replied "this is impossible". So, unsurprisingly, I went to my local dealership and they said "it is impossible to disable the reverse beep on Prius". But maybe at some point someone will find out working method and this is why I am posting this thread. If you know some sort of modification that would disable the beep on European Prius please post it here.
