Has anyone found that the advanced telephone preparation works and offers any improvement to their mobile phone signal, if so are you doing anything special like removing your phone case, just placing it in the elastic holder or lying it in the bottom of the compartment.
For me there is absolutely no improvement in signal whether I have it on the passenger seat, in my pocket or use the ATP signal induction box. What a waste of £250, all because I wanted a heated screen (that has no separate control for switching on).
Would love to hear feedback on whether anyone can detect any benefit. Thanks.