guys , I've changed the car battery since I owned the bull for 4 times , nothing went wrong or weird , my last one went little differnt, I've changed the car battery after it went dead , each time I turn on the AC , air blows feet then windsheild , then give me a hot blow , then finally it goes cold , it takes about 3 seconds , not a big deal but it's annoying , any idea what's going on there ?