hey i just wanted to thank you guys for the support on my last post i posted. it was about what was draining my battery as it sit, but when i start it. it had the right voltage. but i found out that the battery was not holding charge. i was using a optima yellow top to run my car and a extra yellow top to hold my big system. and auto zone guy told me that, the reason my yellow top went bad is because i have a 200 amp alternator send to much amps to the yellow top that was starting my car and it was killing the cells because a yellow top cant handle all of them amps. he gave me a red top for my car and told me to keep the yellow top for my system, and its been holding charge and my music actually plays harder. so always use the red top for starting and yellow top for extras i learned something you guys probably know this already but it was a great learning experience. but very frustrating. so check your batteries before you check all them wires. i should say. thanks.