The LCD I have is from another Car which I sold last year but kept the LCD due to some reasons.

The LCD has this type of pin

I have no idea where to connect the power cable or the video signal cable, so bassically I needed to find the following two cables from the PIN
a. 12v power supply cable
b. Video Signal Cable
So to find these cables, instead of first cutting the cable, I decided to open up the LCD first and try to find the color codes on the cable.
This is what inside of my LCD look likes;

You can see that there are five cables inside
Red, Black, Shielded Black, Yellow and White
Red is the +ve 12v cable
Black is the –ve 12v cable
Shielded Black is for some unknown purpose
Yellow and White are for Video Signal
So here is the Cable after cutting

Now any video output device can be connected to it. I've decided to add a female RCA connector on the Video cables, the Yellow cables goes to the Inside connector and the white is for outer connector.