the leather armrest can be slid out there is a clip at the front of it at the side facing the dash but you have to slide a tiny screwdriver in behind it, rather tricky to get it right.

but the actualy silver surround and lumbar are plastic welded all the way round, i am doing the same currently with plush so we looked at it last thursday. You have to heat up the 6 - 8 tabs around the oval and remove it bit by bit to save the tags to put it back, i think when i put it back i might put some fibreglass filler around it aswell as its not sposed to be removed and refitted, but that doesnt mean it cant be done

but yeah thats how you do it