i got a 1996 cadillac sedan deville with the northstar. my car has had battery problems before and have replaced it a couple times...i have subs and an amp that hasnt been causing issues before so i dont think thats the problem but it may be. my car just wont hold a charge, and i charge it up and drive it around, then the next day its dead...if anyone knows what might be wrong i would love any help i can get thanks