I do have them all grounded to the same point. However, I'm not sure what the voltage is at this point, and I don't have the tools I would need to find this out either. (Need to go buy a voltmeter I guess).

I have seperate filters on all power lines. Well, seperate form my Amps/Empeg. The amps are pulled directly from the battery, whereas the empeg is tied into my wiring harness, and I'm not sure how many places it goes before it hits the battery. Could this cause a problem?

(O|||||O)