Having searched the forums extensively I have been unable to find the correct color and gauge wires I should use for running from the front firewall to the rear taill ights. My aftermarket turn signals have blue and red. The taillights black and white. Also note I have an aftermarket trailer light set up and have converted to 12 volt with Alternator. I was thinking of adding a terminal block near the rear tailights under the bed to clean up this mess (pictured). I realize I may get advice to install a brand new wiring harness complete but want to hold off on that project when I tear the bed and cab apart.Thanks for any help.