Quakers Hill police have warned car owners not to leave valuable items in their vehicles, especially those parked in driveways, open carports and on the roadway during the night.
Quakers Hill Crime Prevention Officer, Senior Constable Sue Carter, said the community was becoming complacent and should remember to remove all valuables from their car.
``Thieves have been stealing items like E Tags, Navman GPS Systems, tools, phones, cash, DVD players and a number of number plates have been stolen,'' she said.
``People should take these items with them when possible, or at least store them out of sight in the vehicle.''
Car owners should also consider securing their number plates to their car with Anti Theft one-way locking screws.
The screws can be purchased from hardware and auto parts stores.
``Thieves usually gain entry by smashing a window or manipulating a lock. If you can not secure your vehicle in a garage, park your vehicle in a well lit area, whenever possible,'' she said.
``It may sound obvious, but always remember to lock your car, and ensure all the windows are fully closed.''
Anyone noticing suspicious activity around parked cars is asked to report it to Quakers Hill police on Ph: 9678 8999.