Sail Panel Dome Light Wire Routing ('65 Barracuda)?

I believe I have what I need. Now I am not sure how the little lamp sockets are attached to the body? The plastic lens just screws on to the vehicle structure and I don't see any frame to support the sockets anywhere. They do seem to have some kind of spring clip that rides very close to the socket. Obviously, they need to be accessible for bulb replacement time.

dome light socket.JPG