In this picture you can see where we ran the power wires on the passenger side of the center console. The speaker wires and RCAs (signal wires) are zipped tied together on the driver side.  You can also see the power wire from the subwoofer amp. We made sure not to let this power wire come in contact with our signal wires.  A very important note, make sure that you parking brake and gear shifter will not cause wear on any of your wires. Make sure the wires are not in contact with any moving parts. Potentially it would wear away the protective coating. Test your brake and shifter to ensure they do not kink or rub on any of the wires you have installed.