I recently noticed that my gear shifter is not lighting up...the - & + are but not the D,R,etc. I have no idea why. My dad put a new factory stereo in yesterday. And last night I noticed that my air/heating dial are not lighting up. They work fine. The 2 buttons above (the circulating & ac) light, but the 3 dials do not. So, my dad thought he might of pulled something loose. But everything looked ok. He checked the fuses too. Then tonight I noticed that the area on the stereo that shows the station or cd is not lighting. We are pretty sure it has something to do with replacing the stereo, but can't figure out what it is. I haven't had any problems like this before besides the shifter, which was already not working. Anyone got any ideas??

Thanks!