Hi guys, I have in my car just a vide blackair 1400w sub and 2 6x9s that were both working absolutely fine for 6 months up until a few days ago. What I had done is ran one battery cable on a deprecate side of my car which went straight to the back and then when through a fused splitter and then into both amps. Only now both the fuses on the amps (one 30amp fuse in the sub and a 25amp fuse for the 6x9s) have blown but not affected any of the fuses on the system. So now I've pulled the 6x9s out and I only want to run the sub but whenever I touch the battery cable to the positive input it sparks like crazy and keeps blowing the fuse. So thinking it was a dodgy amp I tried with the 6x9 and it does it to that. Previous to connecting the 6x9s up I did only have my sub in and it work fine. What could cause this and how can I stop it? I'd appreciate some help.