Write the next sentence in the following story.

How to choose a car tracking system
Establish the purpose of your tracking system.
What you use the tracking system for will help you decide what features you'll want. Is this system to monitor teens using the family car? Do you want your tracking system for theft protection? Would you like to keep close tabs on the company car? Certain tracking systems will help you more than others, depending on your needs.
Be ethical with your car tracking usage. Using a car tracker without the driver's consent can be an invasion of privacy.