Originally Posted by jbny

Naz24 - I went through something similar for the last three weeks, battery dead, replaced with new one from Autozone that died after 2 days, got the car jumped , checked charging system all came ok, dies again overnight, bought charging system from autozone ran it for 4 hours, car started fine after that, died again over night, charged again but this time nothing, tried to jump start it .....nothing, by now i knew it was something draining my battery real bad.....I went to autozone replaced the battery from before (5 day old) with a new one, took it to the stealer and after a week of draw tests and $$$ they found out that the draw is from my DVD system (which was'nt even on for like 6 months not sure if the first battery change started something i was not aware off)...i've had the car for 4 days now and no issues yet.
I'd suggest pulling out any aftermarket stuff first and if it does not work only then consider the stealer.(sry for the long post)
I hope it works out for you.