it was not so difficult though a bit hard to figure out...
you put the top down.
take out the bottom part of the seat by pushing each front end of the seat bottom part backwards and pull up. use some force or a prybar to bend the bottom seatpart upwards so it loosens. take it out. there are multiple videos on youtube how.
then the back seat cusion... there is a similar fastener as the bottom part right under the headrest so what you do there is to grab the top part of the backcusion and give it a hard pull so it loosens.lift up, there are two small tabs on the bottom that holds it in position.
then when installing it again you need to push the two tabs for the necksupport and lift that upwards so you can push it back in place. you will see it when you have the back rest out.
for the sidepanels...
take away the corner cover on the doorsill
the doorpanel is hold in place with two plastic retainers that pushes into locking so give the sidepanel a nudge inwards to the midle of the car. not much but a little, one fastener almost on the rear edge of the cover and one slightly down from the part where the seatbelt comes out.
then when you have the cover loose outwards to the midle, you lift it straight up. two or three tabs is holding it in position there.
carefull to not use to much force. there is cardbord like structure only on the backside of the sidepanel.
ill post pictures later