
1. To locate the ACC wire, start by finding the fuse box. Set a multimeter to DC voltage, connect the black lead to battery negative, and use the red probe to find a wire that shows voltage when the ignition is on but not when it's off. That's your ACC wire to tap into.
2. If your bike lacks a fuse box, you can connect the yellow cable to the tail light wiring harness instead. To access the tail light wiring, remove the seat and rear fender panels to expose the area around the tail light. Next, remove the tail light housing cover. Use a multimeter to test the wires and identify the one with power running to the tail light—this is the wire to connect the yellow cable to.