Ekstreme

Hi all. Just picked up a nice condition IS250 but am having an issues with the rear seat armrest cup holder ejecting. Pretty sure something sticky has been spilt inside it as it does ever so slowly eject to a point that I can pull it out.

I have found info from older models that show a plastic tab on each side that can be depressed with a flat instrument allowing the draw to slide past the catch. For this one it seems to be a steel stopper that is catching the steal outer casing and there's no way I can depress either of these. I have circled the part that looks like it's catching. Does anyone know how I can release the draw so that I can give it a good clean out?

Thanks

Sorry i realised I put this in the wrong thread but couldn't work out how to move\delete it.