i let my friend install my stereo into my 96 because i thought he knew how. turns out he didnt. he got the radio working fine, but i guess he didnt connect the wire that holds all the memory correctly. now my clock does not lite up, and my stereo completely resets every time i take my key out. but this isnt the real problem. when i press my maintenence button, it doesnt lite up. do you think he might of disconnected a wire that caused it to not lite up? and also ever since i got the car, ive never seen the check engine lite come on, now i have 85k mi. just to be safe do you think this mite also have a wire problem? when i turn my key to "on" everything comes on, but only when i press it, it doesnt show. i dont mind everything else for right now i guess, but i just want the cel to come on when its supposed to. and also would the maintenence lite affect anything if not reseted for a long time?