No ICE in the car, just a receiver, head unit. Thanks for working with me here fellas.
After purchasing the new battery, I drove it, it sat, then the car didn't start, I jumped it, and took it in to NAPA. They tested the new battery, said it had near-full charge and had 605cca. Put the battery back in and had to be jumped to get out of the parking lot with the guy saying, "you prolly got a bad starter," which he couldn't even point out to me.
All of this after making no modification to the car in more than 3 years, since the previous battery had been replaced.
April '06: Replaced battery
December '08: Battery dies, hear the 'machine gun' from the starter, car sits for extended period of time.
February '09: Jump the car, drive it normally for a few weeks.
March 10, '09: Car refuses to start at the same sound from the starter, and it sits again.
March 13: Old battery tested, found to be 'bad'. Purchase a new battery.
March 14, 15: Car runs fine.
March 16: Car sits
March 17: Car won't start, jump it to get to Napa. Clerk meters the battery says it has a near full charge, with 605cca. Jump car and go home.