I've tried to engage with TomTom but they say talk to Citroen. They say they don't know. The car allows the language of the dash system to be US English (no choice of UK English) but that causes the voice guidance to be in US English. I'd like to use one of the normal UK English voices that comes with normal TomTom devices or even upload one. Does anyone know how to change the voice? I've looked in the settings but there is no option.