I have a 98 hyundai tiburon. recently the battery light went on when I was driving. the next day my girlfriend left the headlights on and the battery died. We tried to jump it with no luck. I got the battery charged and tested and it tested ok. I put it back in the car and still not luck. The interior lights come one and it dings when the key is in the ignition and the door is open. the hazard lights work, but the headlights, dash lights, and radio do not. There is no noise when I turn the key and I noticed the cables were a little loose. Could a loose connection be the issue?