I have two 6x9 alpine speakers in my 99 cutlass that came with it from the original owner. i cantell he had a nice system in the car prior to selling it. my question is if i hook up an amp will it make the speakers bump. without it they dont sound bad but i can tell they could sound WAY better. if i shift the audio all the way left or right they start to bump a bit. but when centered they are sort of distorted. will the amp change anything? if so what do i have to look forward to. thanks!