my contour's radio fits and works fine in my 1992 bronco so it should work. but the lights in the buttons didnt work

1994 Volvo 850 Turbo 1992 Bronco Eddie Bauer 5.8 E4OD 1998 Contour GL 2.5 CD4E 2001 Montero Sport Limited 3.5 Auto 2002 IS300 3.0 Auto See My Cars