[B and C]

Sorry, not a very good explanation.  Yes, the metal latch on the outside of the bay door.  The lock is missing on one door therefore I don't have the toggle on the back of the lock to connect to the actuator arm.  

Also, the 12v lights in the bays, any recommendations on where to find a replacement would be appreciated.  I have a couple where the switch has been broken off.  They use miniature halogen bulbs and have a plastic grill over the lens.

It's a steep learning process on these coaches.
Thanks.