OK, first the banging and force pulling method is OUT !!!! All of the Bravo/a seat head rests can be removed whit ease. You only need these pliers (don’t know the right name ;) ) The next step is to pull up the head rest and grip the pins whit these pliers.
WARNING : Put some thick cloth under them plieers, or the plastic will get “eaten“ !

Then when you have a good grip, turn the pliers in CLOCKWISE direction for 90°. You will feel something give away and it will turn more easy, that is the lock giving away. After you have done that, just pull the head rest out of the seat. And that’s it, all done ! To put all together back, just plug in the head rest and turn the pins ANTI clockwise.

Download pdf Fiat Marea Removing The Seat Head Rest