Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to keep your phone cool in the car [title] Keep your phone on a vent mount with air conditioning on if you need to use it. [step] If you need to use your phone while you're in your car, purchase a mount that attaches to one of the dashboard air vents. Turn on the air conditioner so it keeps your phone cold.

Ending1: [title] Wait until you reach your destination to turn off your phone. [step] If you arrive at a restaurant or similar place, give the attendant instructions beforehand on how to turn off your phone. Ending2: [title] Access the power cable that is under the steering wheel when you need to keep it cool. [step] Press the button on the front of the phone that gives you access to the power cable. Ending3: [title] Ensure your phone stands upright and doesn't tip over. [step] While this will keep your phone safe from insect bites, some other electronic items like magnetic bars and e-readers may tip over when you drive. Ending4: [substeps] Be aware of the laws where you live about using your phone while driving. Keep your safety and the safety of others in mind.

Answer format: ending1/ending2/ending3/ending4