Don’t hack up your wiring harness, use quality OEM compatible lead connectors for your aftermarket signals and/or relocations.
Before mounting the turn signals, you should take into account their placement. If the stock wiring does not have the necessary length to reach the signals, you will need an extension that matches the original terminals of your custom. In the Customacces catalog you can find the specific extension for your Honda, Kawasaki, Suzuki and Yamaha as well as an universal model. All of them in black, to better match your motorcycle.