Ok, i wasn't aware that speaker +/- mattered, i've always just made sure 2 wires went into speaker and 2 wires come out of speaker. i'll check tomorrow all of the wires aren't earthing, but sureley that would affect the output completely, not just at high volume
I am getting cutout when loud is on, or the volume is high with bass. i've been told it could be a bad earth, so another reason to check all of my cables. if i turn the subs off it still does it, which led me to believe a bad head unit connection
also, i've been sold a lemon head unit. half of the lights don't come on, and most of the buttons don't work. i have to use the remote to do anything. the battery wire also seems to not be working. when i initially installed the unit i made sure it was. and now it doesn't remember where i was on the CD or the radio stations. it's quite annoying, because the place i got it from has to send it off for repairs, not just replace it.