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Hi, My owners manual states: ”Adding lights or electrical devices to the headlamp/park lamp circuit without a separate relay can damage the headlamp switch and wire harness.” Further and more specific to my 3500, it states: “All Ram pickup models with cab clearance lights or any 3500 models must add a relay to the circuit before drawing any current from the headlamp switch.” I am going to be hauling a Gooseneck and I’m wanting to know if anyone has a relay for the additional lighting on their trailer. Thanks Leaky