I have a 1995 camaro with the delco bose setup in it. The radio however has a minor issue. sometimes the radio works fine but, other times it gets stuck on a radio station and none of the buttons will work. The screen says the volume and station are changing but nothing actually happens. The CD player still lets CDs in and out and will not play them. I have tried opening it up and cleaning it but nothing has worked. Also nothing seems broken but i could have missed something..

Any ideas or tips?