2004 Chrysler Pacifica battery/alternator/ground wire?

Do a load test on alternator. Put voltmeter on battery. Pos to pos, neg to neg, and start car. What is voltage? 13.5 - 14.7? If so, keep prongs on battery, now have someone turn on high drain accessories like blower, high beams and radio. What is the voltage? Still in that range? If not bad alternator. If either voltage reading is outside this you have a bad alternator. Probably not your issue but too high a voltage is also a bad alternator. Bad regulator. Set meter to volts DC 20V setting if it is not an auto ranging meter.

Yes a grounding issue or too high a voltage drop will keep a car from starting.

Nine times out of ten when battery light comes on has something to do with alternator not charging could be a blown alternator fuse

I should mention that the car is not turning over. It just clicks and this is new. I'm thinking I have more than one problem going on. My boyfriend charged the battery the other day and went to pick up a pizza and ran out of gas. It was dark so he left the car at the pizza place and the next day he went and got gas, and the car would turn over but wouldn't start. He figured the battery wasn't charged enough at this point so he removed the battery and brought it home to charge. We took the battery back, put it in the car, and it wouldn't turn over. All you hear is a click.