I have a 2002 grand prix se with the 3100v6. I have let the car sit outside for a few days and go out in the morning to have to jump start the car. The battery is brand new(2 months old) and still tests perfect. I have an aftermarket stereo, but I disconnected the amp last night and went outside after 2 hours and the battery was dead. I have an aftermarket alarm, but that has been on for 2 years now and never had that problem with it before(best buy looked at it for me anyway n said it was fine...they had to jump the car after it only sitting for 2 hours). Does anyone have any ideas on what it could be? The battery is completely dead in the morning and I have it on a battery charger as I am writing this.
