Ok here is my problem.Let me start off saying that i did the same thing 5 years ok and had the same problem.How do you run 2 sub amps off of your head unit without killing your head unit?I got two splitters and ran one to each amp.All was good,then the subs went out.I turned off my car,turned it back on and then it went bump,bump,bump.Every time it went bump the subs moved.I disconnected one set of splitters and ran them to one amp, fine.Switched to the other amp,fine. Try to run both at same time,bump,bump.When this happend years ago a stereo repair man told me something about to much voltage or something like that.So, how can i run two sub amps without killing my stereo?