For the longest time my audi 90cs has been running fine until the battery started going dead. I checked everything to see what had been left on or if even a button was stuck down. I tried buying a new battery because the one in it was fairly old. within twenty-four hours of not driving it, it was dead. So I used a volt meter on the battery and pulled fuses one at a time and then replacing it to see if the meter would raise indicating that whatever was running off of that fuse could be whats grounding out and pulling from the battery. no luck. I have no more ideas. please help. thanks.