There is a triangular cover on the top front of the door panel that covers the mounting surface for the outside mirror.
Removing a hyundai sonata door panel.
Remove the quadrant inner cover and the rear view mirror.
Quick video on how to remove the door panel and speaker on a 2015 hyundai sonata sport sedan.
On most models there is a plastic cover over the hole.
Hi here is step by step procedure on how to remove replace door panel cover in 2011 2012 2013 2014 2015 hyundai sonata.
If you do want to fully remove the door panel press the small black plastic release tab located in between the two cables to remove the door pull lock unlock mechanism.
Use a torx t20 screwdriver to remove them and pull the speaker out of the inner door panel.
Insert a trim panel remover between the trim fasteners and the door trim panel to pry off.
The oem door speaker is held in place by four torx screws.
The release tab is illustrated with a blue arrow in picture 21 above.
Remove the phillips screws in the arm rest.
Remove the covers and the screws.
Process is similar for passenger side door less connectors.
Remove the front door inside handle housing.
Remove the door window regulator handle and then remove clip using a piece of cloth manual type only.
Remove the screw that holds the plastic cover just in front of the door handle and remove the cover.
Hi this is video explaining how to change remove replace door panel so you could get to window switch in 2006 2007 2008 2009 2010 hyundai sonata.
I haven t looked at the rears but they will be very similar.
Remove the front door trim panel.