As NV said there is 2 button head bolts on the lower corners of the dash face and 2 push pins on the top.
The face is held in place by a plastic protrusion that pushes through a rubber grommet so you need to pull on the dash to pop the protrusion out of the grommet.
The power socket is joined into the bikes power system with a 2 pin plug, to fit your new socket you will need to cut and join wires, find a copy of the plug or make your own.
On the back of the socket there a large nut that can be removed with multigrips pliers.
Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.