i have a small audio set-up in a 95 explorer, i have 2 12" spkrs. box, 4 6x9 pioneer speakers and a kole audio c2.5sd capacitor hooked up too the 12". i' am having some trouble with the cap. everytime i leave my music pumping for a while the cap starts to shut off my low's and it's getting me very angry while i drive with the windows down, do i need a better cap or do i need to change my alternator. i need some suggestions. thanks