My alternator fried itself after my 5 year old Mopar battery finally went to battery core heaven. I replaced the alternator, belt and battery. Life was good again for about 2 days then when driving with the ice cold air conditioning on it suddenly went hot. Like sauna hot. I checked the actuator for th blend door and it was fine. After troubleshooting I noticed that whenever the lights were on parking or headlight the blend door actuator for the heater flips to hot. I sh*t you not. Lights on, air on, super hot. Lights off, air on, super cold. I confirmed this by physically removing and watching the actuator do this. Other than the supernatural what the hell could this be? Relays were checked too.