My car speakers are becoming distorted?

I am sorry Brieanne, but i do not believe that is the correct answer. There is a possibility that your speakers are distorting because they just simply aren't getting enough power. It is also a possibility that your speakers are not made to deliver a lot of bass and still play the mids and highs, try tuning your High Pass Filter (HPF) to the speakers on your head unit, this will make the speakers play the high and midfrequenciess, canceling out the lower frequencies. Thus canceling out the distortion on your speakers.