Using Car Charger (12V Output) to power RGB LED strips and Arduino

Other Hardware General Electronics
1

Hello,

I am fairly new to Arduino and electrics, so please excuse my incompetence. And I have tried looking for this specific setup on several forums, but none was found.
First of all: I am not powering anything from my car's battery. In my car, I have a charger outlet (cigarette type) which outputs 12V. Can I use this to power an LED Strip?

If I can, which kind of adapter would I need?
Basically, I want to do this: http://learn.adafruit.com/system/assets/assets/000/002/692/medium800/ledstripfet.gif?1353964350

But I only have an Arduino UNO, which doesn't have a 9V output pin. So I want to use my 12V output charger in my car instead.

The main thing I am stuck on is how to connect the strips to the Arduino with all the transistors with an external power supply? And, how do I connect the ground for the Arduino to the ground for the LED Strip?

Edit: I just found this, Female DC Power adapter - 2.1mm jack to screw terminal block : ID 368 : $2.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Can I maybe use this to get a positive and ground wire from my car's 12V output?

2

You need to understand that current is important... so yes 12v rating is good but if it's only 200ma it's not goimg to work...

Also 9v out on an arduino ? That's new?

3

Oh yes, thank you I haven't forgotten about current. I bought a 12V 2A adapter, I think that would work for 2-3 meters of Led strips?

4

I am using ESEEKGO LED car charger. It really work well. You can have a try. https://www.amazon.com/Charger-ESEEKGO-Adapter-6-6ft-Samsung/dp/B01NA8TWX9/ref=sr_1_49?m=A2PQ5VQHSRWEC5&s=merchant-items&ie=UTF8&qid=1480559480&sr=1-49&refinements=p_4%3AESeekGo