Currently, my car has pioneer front and rear speakers and are all hooked up to my 4 channel amplifier. I am planning on adding a 12 inch mtx jackhammer subwoofer to my audio set up. I am aware about replacing my power cable from the battery to a bigger cable maybe a 4 AWG and just using a power distributor block to split the power between the two amps. I am clear about what I need to do, but a little confused on how to wire the additional sub to my deck. Can anyone help me out?