Car Rental Sat Nav Hire

Does anyone know if it is possible to hire a sat nav from Dollar rent a car and approx costs for 2 weeks?

Am planning trip to pick up rental car in LA and drop off in SF but being from the UK, really need a sat nav to assist.

Thanks

Car Rental Sat Nav Hire

I don%26#39;t know for sure, but I think that all rental car places have GPS%26#39;s now. We were quoted $10/day a couple of weeks agon LA.