So my girlfriend's Civic was making a noise and, against my wishes, she refused to take it in. So she came over, and the battery light was on, and all her accessories were starting to fail (spedometer, radio, lights, etc.) one by one until none of them would function, and thinking there was something wrong with the alternator, I insisted she take it in. I ran inside to grab my keys, came out, and the car had stalled, battery dead, and I figured the alternator had went.
I hooked up my jumper cables, and the car would only make a clicking noise. So we had it towed to her mechanic's from my apartment building, and it turns out something was wrong with her harmonic balancer. Would this have caused the electrical issues? And what else can go wrong if that fails? I'm trying to give her some examples of worst case scenarios, so she can understand why it's important to not let little sounds/issues become big ones. Thanks!
PS It's just a 4 door sedan civic (1995), nothing special. It's even automatic too.