Yes!
This is the little bracket that goes at the back of the invertor to brace it out from the dash and stop it flapping about
This pic shows a close up of it in place.
One of the bottom 2 holes locates on a plastic peg sticking out of the dash (left or right, depending on LHD or RHD) - this is probably there on your car even if it didn't originally have EL dials.
The top holes should screw into a self tapping clip pressed into the dash (same as you could see in the bracket itself) - this is probably NOT there on your car if it didn't have EL dials before.
This pic shows the rear bracket and the top one, that screws up under the top of the dash, to take the 'weight' of the invertor.
