Started with a new red top optima. Was completely gone after about 8 months. Replacement red top, fried 8 months later. Called optima, they said my system (2 sundown 12's and 6 type R 6.5" speakers pushed by correctly sized amps) was too big and that I should use a yellow top and that that was the problem. Yellow top just fried yesterday. Now the batterys don't just become weak. They go DEAD. I trickle charged it for 12 hours overnight and in the morning the battery wouldn't even hold an ounce of charge.
Gauge in car reads 14v. However, when the turn signal is on, it slightly "ticks" back and forth each time the turn signal clicks. You can also hear the turn signal through the speakers if you have no music playing, just white noise. I pulled head unit, went through all the wires, nothing.
Lastly, I have a horrible speaker whine. I've tried everything. re-wiring, opposite side rca, shielded rca's, quality amps, 3 different grounds all less than 6" in length with a 0 gauge cable. I have NOT done the big 3 however.
So those are all my clues. Not sure the whine or turn signal are correlated with the dead battery, but I figured they probably were. Where should I begin? I pulled every fuse 1 by 1 and nothing fixed the whine issue. Even the fuses under the hood. Thanks everyone!
2000 trans am ws6
P.S. I only drove this car a total of 1,391 miles last year. I did however make sure it was started at least every 7 days if it hadn't been driven and I let it run for 25 minutes each time, religiously.