I have 2 vehicles with a class 3 hitch(es) on front and rear . I ran "battery cable" with connectors from the battery areas to both front and rear. The winch has cable and an SB175 plug at the end, to match the cable. I want to use my current battery as a power source, and hook up all cables to this battery. Need advice on what to do further to attach all cables to the power source. Thanks.