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I would get the alternator checked next to make sure it is charging the battery & all battery and Alternator connections are good.
I tried cleaning the terminals and checking for loose connections, also started the car and unhooked the battery terminals to see if the car would kill, it did not. after cleaning the connections and tightening the connections I tried to start the casr but it would not start. It just clicks when trying to start it. First the clicking is coming from behind the dash and then I can hear it clicking at the starter I presume. What next? Your thoughts?
The clicking sounds like low battery voltage to the starter motor , i would get the alternator out put checked if you have a voltmeter check the battery voltage should be about 11.5 volts to 12volts then start the car and you should see at least a 2 volt increase this is a basic check but will show if alternator is charging.