just aquired a blues deville 4 10s , 3 speakers blown bottom 2 disconncected. have purchased 4 jensen mods and am curious about the extra black wire. is this just run to the same ground side between those 2 speakers it was attached to a white wire side on 1 speaker but others were taken off. also like to say hello to everyone . this is my first post. any help is appreciated. i dont think its a big deal i just want it to be right