Ever had a package go missing from your front porch? Now Amazon thinks they might have a solution to circumvent package thieves.

Amazon has tried a few solutions to tackle package theft. Amazon Locker offers over 2,000 secure self-service kiosks across over 50 cities where you can pick up your packages. You scan a code on your phone to unlock it and grab your stuff. That solves the security issue.

The real problem? If you don't live close to an Amazon Locker location, it's not as convenient as getting your package dropped off right in front of your door.

Enter Amazon's latest technology: Delivering to the trunk of your car. Your car is either parked at home or parked at the office during the day. So why not put it to work and store your packages in the trunk?

Amazon's new in-car delivery service is free for Prime members and available for newer cars equipped with OnStar. It's available in 37 cities, according to New York Times. The Verge reports that it's been beta testing the service in California and Washington for the past six months.

How it works

First, you have to have the right car. Amazon says most 2015 and newer Chevrolet, Buick, GMC Cadillac and Volvos can support in-car delivery. The car also needs an active connected car service plan, like OnStar or Volvo On Call.

You set things up with the Amazon Key App. At check-out you select in-car delivery and Amazon gives you a four-hour delivery window. Your car needs to be within two blocks of your delivery address, so make sure you specify if you'll be at home or at work.

Amazon's delivery drivers then use OnStar or Volvo On Call to locate your vehicle and unlock the trunk. They'll also have your license plate number and a photo of your car to verify it's the right one. They place your packages inside, close the trunk, and that's that.

What if someone sees all this go down and decides to break into your car to steal your package? Amazon tells New York Times they'll cover broken windows or locks if that happens. ​

But, this magic technology has many restrictions

Amazon specifies that your car must be "parked in an open, street-level, and publicly accessible area." That means it can't be in your building's restricted access parking garage or parked in your locked garage. The GPS technology won't work for cars parked in multi-level parking garages and underground garages.

According to The Verge, certain packages are not eligible for in-car delivery, including ones that:

Weigh over 50 pounds

Are larger than 26 x 21 x 16 inches

Require a signature

Are valued at over $1,300

Come from a third-party seller