Thanks Bill. I definitely do not have those inserts. Very interesting.
Here is the info on those handle inserts from Real OEM
http://realoem.com/bmw/showparts.do?...34&hg=51&fg=65
16 Handle recess, left 1
51497345047
16 Handle recess, right 1
51497345048
Based on what I'm seeing, I'm not entirely sure this is a simple retrofit. There is a plastic mount on the back of the panel.