No idea mate... I could recode them but no idea as to how to get them out other then you need to push a little button type thing with a small screwdriver! maybe...
The lock is held in place by the spring loaded tab furthest away from the key hole you need to slide a piece of metal round the end of the lock to push the tab in then the lock will slide out.
Check first - you may be able to juggle them around, there's only three different ones. I managed to get the panniers I just bought first to work with a spare key with no new leaves, but when I looked further at the leaves (?) I found I could get them same as ignition with addition of an extra pair of '2' which I happened to have from something else.