Attach the suction cup to inside the window of your front door and shut the door on the security cable.
Place DoorShox guard on each door, one at a time. Repeat as necessary.
*Note: before closing vehicle door make sure all connectors are out of the way
Never drive or operate vehicle with DoorShox outside/attached to the vehicle. Doing so may be dangerous. Intended for parking use only. DoorShox and vehicle must be cleaned regularly to avoid debris and dirt build up. Failure to follow instructions may result in serious injury and/or vehicle damage.