Depending on the age of your car, it might contain a round 12 V ... And depending on your own age, you might know that as the cigarette lighter port. Whereas this thing used to have a single ...

Depending on the age of your car, it might contain a round 12 V ... And depending on your own age, you might know that as the cigarette lighter port. Whereas this thing used to have a single ...

If you plug it in, and it doesn't work, there probably isn't power to the socket. Try plugging in the cigarette lighter - If you still have the cigarette lighter that came with your car ...

(I both have and recommend the flush ones, but the USB stick pictured here was free and this car was currently at my house.) But perhaps your application doesn’t have a cigarette lighter.