One alternative would be to buy a Device, around £ 70/ £80 for some models. Whilst on to the topic of car rentals, please be aware of the damage deposit usually required and inspect the vehice thoroughly. I nearly got stung once , when I returned the Car they said there was a chip on the Windscreen and my deposit £ 50 was kept I argued that surely I had no control over this , but they still insisted. However after a couple of weeks and this event still bugging me, I suddenly remember that after the Man and I had inspected the vehicle, I remember he said O.K. sir, go into the office and I wil