[OS X Emacs] use system input source shortcut in Aquamacs

[Max Arnold]

Hi,

Is it possible to use single shortcut to switch input language both in OS X and Emacs simultaneously? On Linux this
can be achieved with Xxkb and the following snippet:

(setf (gethash #xfe08 x-keysym-table) (aref (kbd "C-\\") 0))

Does anyone know how to configure Aquamacs in a similar way? This will be really helpful.

Thanks!