that is my assumption but seems like it works fine when i had the heater all the way up the interior light on and my head lights and for good measure turned my high beams on to create as much of a power draw to see if the alternator can keep chargeing quick enough. i made sure the nut on the alternator is very tight to where you would have to use a lot of force to take it off and i made sure the ground of the amp to the car is tight and the battery negative and positive. the postive terminal will not go all the way down since im still using the stock starter wire and still had the stock alt line with it which i tucked away from anywhere that is metal and zip tied it. but right now i just don't know where the loose connection is i will take a picture of the terminal i was talking about before i go to work later today. and see if that could be a problem