"Jams car radio"0.5 starson by insane consumer
Pros: I bought it at WalMart for 200.00. I was intrigued with the voice navigation feature. The unit functioned as expected.
Cons: When I turned on the car radio a speaker shattering buzz resulted. The unit apparently has a shielding problem.
Summary: I've lost my confidence in the unit and TomTom and will be returning it tomorrow. Perhaps a replacement would work better but this should not have occurred with this unit.