interior curtesy lights
My 73 has the light package. In addition to those lights already mentioned, the package also had a light in the front ashtray receiver, and another on the column that illumininates the switch for about 10 seconds after the door opens.
The trunk kit is very easy to install. It connects to a connector in the dome light lead in the general location of the left rear wheel house. There's a switch that screws into the body lip to the trunk and the light goes on the passenger side of the trunk. Can't say that it lights up very much, but it's better than nothing.