Motorists in Sandwell have been warned of the dangers of installing a satellite navigation (satnav) system in their vehicles, it has been reported.According to the Halesowen News, officials in the region are telling drivers to make sure they do not leave the devices too prominently on display.It may be that a break-in by an opportunist thief compromises car insurance policies, as cover firms could consider those who have been targeted negligent.West Midlands Police Inspector John McPhee stated that taking precautions is always a good idea."If possible, buy a system with anti-theft security features and don't leave your equipment in the glove compartment as this is the first place thieves look," he said.A sat nav system sends and receives signals from space in order to geographically place motorists and help them find their way to their desired destination.