Step 1: Remove The Trunk Latch

The trunk latch needs to be removed to gain access to he nut that holds the trunk lock sleeve in place.  The trunk latch is held in place by two bolts but if it's removed then it will have to be aligned when it is put back on.  Tip - Remove one bolt and loosen the other just enough such that the trunk latch can be pivoted out of the way.  That way alignment won't be necessary.

With the trunk latch out of the way the nut that holds the trunk lock sleeve in place can now be accessed.  It's hard to reach but it shouldn't be on tight.  If you can't get it started with the pliers then use a 15/16 socket.  When the nut is off  you can remove the spacer and the trunk lock sleeve.

Step 3: Remove The Trunk Lock

This is the only trick to the whole procedure.  Note that there is a small pin that prevents the lock from being removed from the sleeve.  Insert the key and turn it 1/8 turn clockwise.  At that point the pin can be depressed.  With the pin depressed the lock can be removed by pushing it out of the sleeve.