It is possible to get inside the armrest as such.... Bit fiddly.... just get yourself a couple of butter knives and gently lever the outer surround off which then gets you to the retention lugs which you can depress and then pull the whole drinky tray tray bit thing out....
Its not overly challenging.... or maybe i'm just used to doing it!!!!
I have narrowed it down to either the kids or the dog!!! No one will take the rap....
Have a spot of patience for re assembly as its a pain to get the lever spring thing just in the right place... recline the armrest to about 45 degrees... long nose pliers and a good torch....
James

