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The light bar can only be on when the key is turned, and the rocker switch is what determines when the light bar is on. Yup, run the yellow from your pulse bar to the red hot wire on your harness. And jump the rocker switch light and positive and you are set. Light bar wiring harness diagram from www. lastgreatroadtrip. com to properly read a wiring diagram, one offers to know how typically the components inside the program operate.
Figure 2 illustrates the external/internal light assembly wiring by function. Using figures 2 and 3 as a guide, make the appropriate electrical connections. Be sure to use fuses (current ratings shown in the diagram in figure 2), wire and switches with adequate current capacity for each function. Note when takedown lights or directional strobe. Lay out the wiring in the engine bay, making sure the deutsch plug can reach the location of your light bar, the terminals can reach the battery and the switch can penetrate through the firewall. Secure the connections with black tape. From the relay harness, tap the red wire to battery positive and the black wire to ground. Draw the switch portion of the wiring from the passenger side to the driver side. Locate the rubber cover on the driver side and open the firewall cover.