Using the built-in DIN connector on the TRIGGER 6 SHOOTER or 4 PLUS, connect our TRIGGER DIN Connector Harness for manual control of conventional rocker switches. The harness is 12 ft long. Important: When installing the DIN cable to the controller, be sure the power is off before inserting the connector. The yellow wire on the controller is power on/off, be sure it has no power going into it before connection. The DIN harness allows you to use conventional rocker switches with TRIGGER…for example, let's say you already have accessories wired up in the traditional way, with mechanical relays and a nest of wires. Using the DIN harness you can remove the mechanical relays and wiring currently powering your accessories, connect the conventional rockers to the TRIGGER via the DIN harness, and then connect the accessories to the TRIGGER. Now the conventional rockers are basically sending a signal through the DIN harness to the TRIGGER which then controls power distribution to the accessories. Make sense? The end result is a cleaner installation (we've gotten rid of the relay/wiring mess) and we've added yet another way to control your accessories…now you've got four different ways to control your accessories through the TRIGGER: 1) buttons on the control box, 2) RF remote, 3) App on your phone, and 4) conventional rockers with the DIN harness.