How to connect car stereo external amplifier?

This is Jack quesions:
I am looking at your Pumpkin 6.95 Inch Pure Android 4.4 kitkat head unit Two / Double Din Universal Car DVD Player(s)  My question is about connecting external amplifiers, do these units support external amps.  I do not see amp pre-outs like I see on other units.

So how to connect external amplifier?
This unit can support the connecting external amplifiers, you need to find the audio wires in the audio/Video cable,
connect the adaptor red and white wires like the pic to show,
then use the adaptor connect your amplifiers,
and you connect amp wire in the Audio cable to your amplifiers.

Any questions please feel free to let me know by autopumpkin@gmail.com