This happened to one of my Pure Evoke radios as I recall - the wobbly handle and the need to get inside the case...
There are six cross-head screws at the back and an aerial - I remember having to undo the hex nut that secures the aerial before the guts can be removed.
I answer here with only 60% confidence - but it's a simple matter to find out if I'm correct - long-nosed pliers will help.
Good Luck...
July 2016