Green Plugs Under Passenger Seat

[Jamroller]

There are two big green plugs under passenger seat and a black one does anyone know what they are for, im looking at putting two usb phone chargers in rear for my teenage girls to charge phones up and looking for a suitable feed

 

[Pauly]

Nothing there you can use they are all coupling points for various van wiring eg one of the green plugs holds the wiring for rear door locks/switches none of them are straight 12v feeds
Depending what model/setup you have look around under there for 1 or 2 fatish red cables that are blanked off and have fabric over them (could be under the floor covering) these are spare feeds for optional underseat fusebox that most vans don’t have, if you have these wires you can fuse them down to supply kit but only personally seen them on earlier T6s with double passenger seat not sure they are still present on newer ones ??