AV 3.5mm TRRS Pinouts for MXIII-G S812 2G (Beelink?)

[motiv8d]

Hi
I have purchased one of the below boxes, still waiting for it to arrive but, want to source AV cable before it does as I do not have HDMI. I have realised now that there are different 3.5mm TRRS pinouts for different devices. Is anyone able to tell me the pinouts for these TV Boxes, I think from Beelink?
http://www.****.co.uk/itm/MXIII-G-TV...-/291713231550

Here's a link of a few different types of 3.5mm TRRS to 3RCA http://pinoutsguide.com/Home/av_jack_pinout.shtml
Tip is #1 and sequentially goes up to the 4th ring which is the sleeve.
eg: would this be correct for these?
1-Left?
2-Video?
3-Ground?
4-Right?
If so that is good news as I have a cable like this :-)

Update: I have found this video https://www.youtube.com/watch?v=_J3KBDifdxA which is for "MXQ" devices with the 'button in the corner', so I am guessing it would be the same as device I am getting, but still interested others confirmation of similar boxes.
In the vid he shows the pinout to be:
1-Left
2-Video
3-Right
4-Ground

Also someone else advised this cable from gearbest, but gearbest support say it does not work on the MXIII-G boxes http://www.gearbest.com/cables-conne...pp_204062.html

Thanks

Jesse