Sony U70

I do not know why Sony should launch a new product using ancient mapping and information. The number of errors mean this U70 system is thoroughly unreliable and useless for the purpose intended. Sony tell me that there may be new mapping available at the end of the year, but have not confirmed that this will be free of charge. Until current information is available avoid this like the plague. Full post code would also be expected in a new and expensive system like this.