I don't need to know how I need/ don't need a cap in my system, I have one so I may as well use it.
My cap has a volt readout on the top and when my car is on it's lately been reading about 12.6-13.6v, could that indicate a problem with my alternator, etc? It used to read right around 14v unless I turned my subs up. The reason I ask is when I turn up my system, my lights dim, and I'm afraid I may be slowly burning out my alternator.
I'm upgrading my Big 3 shortly to see if maybe that will help...