GP dome light stays on

Hi guys,

When i exit my 92 gp 3.1,my dome light wont shut down.
The only way is to turn my key to on which shuts it down then exit out from passenger side,If i open my door it wont go off ,and normally when I touch the vihicle the light turns on but not anymore.
Anyone know what in the world thats all about?

Thanks Bj.