So my car did great in the snow. Go figure so did my last 2 grand prixs. This one actually did a little bit better until yesterday 12/26/04 when I went to start it and it wouldnt turn over *steaming* just to hear a click click click. Put it on a slow charger and with in a few minutes like 10 minutes it was fully charged. Figuring it was just the cold weather taking its tole I went out and drove around and was fine. Well as the holidays invoke a partying sense with all the snow and what not we where at my friends house having a barn party. I decided to leave. My car had been sitting for about 4 or 5 hours. IT wouldnt start again. Jumped it and it was fine got home. Called dealership because its under warranty, they said did you leave something on in the car. I was like yeah that must have been it not. So it goes in today. Because I have aftermarket stereo if it is the alternator or battery can they deny my warranty?