Do you have the service manual? There is a section in there that details the door locks, and might help you out, you need section BL-82. I cant post it from work as Photobucket doesnt work from here. PM me an email address and I can forward it on if you like? Or there is a download link around here somewhere but I forget it Admitedly it doesnt show you much, but going in blind, it does show you where the bits are