A must have for all SRT's without fog lights! Even without fog lights, the MFS connector can still melt. Plugs right into one headlight plug on your harness, red wire hooks up to either alternator or starter, ground goes to block/chassis, and the fuse block gets secured to the car. Can be mounted on driver's side or passenger side of car depending on how you want to hook it up! Plug into each headlight and now your high and low beams are on relays, no more high-current going through the MFS to melt it.