Okay, i have a 99 cadillac sls... my battery is underneath the rear passanger side seat... exactly how am i supposed to run the big 3 upgrade like this... I'm in the process of adding 4 12" type r's, right now i only have a pdx1.1000 to power them but soon im gonna be running about 2500 rms and adding a kinetic battery to the setup... the Big 3 is something that HAS TO BE DONE... just wondering the easiest way to go about doing this...