courtesy lights

[d240man]

:stupid: I have a 82 280zx non turbo 5 speed. when i open my doors the lights mounted on my doors come on but the dome light doesnt. when i open the hatch the dome lights then works. i checked the lights themselves and found that booth the driver and passenger side lights both have power coming to them from both wires!!! there is no ground!! any help would really be great right about now.