my aiwa CDC-X104 doesnt work correctly. I turn my car on and it just sits there for a few seconds and then tells me all the things that it can do and no buttons do anything except if i hold down "off" then after a few seconds it will turn off and the eject cd button. all i can play with cd player is just that: a cd. no radio or aux or anything. when i put in a cd it plays but i cant change the volume or track or anything, it just plays How can I fix this?