when you pull the cover off you will see this
as you prise the inner horn push off, you need to make sure you are prising the outer portion of the horn push not the wobly bit you push in and out or else you will break it
you need to dig deeper and use a pair of smaller screwdrivers and work your way around
and this is the other side
i don't have any pics of what you will find under the steering wheel though as i ain't got no bits left