Mercury - Lower Helm Harness Dual Engine Next Gen DTS Helm Harness 84-8M0157214. OverviewThis harness handles the lower helm on a dual-engine, dual-station DTS setup. It gives the lower helm its own clean path into the system so the wiring doesn't get cramped or tangled with the upper station. When paired with the upper harness and the helm-to-helm extensions, everything works together without the controls feeling out of sync. It's a simple piece that helps a two-helm layout feel more organized