Plug and play adapter for Custom Dynamics Amber/Red Micro Bullet LED Rear Turn Signals install in line with bike’s factory wiring to allow for simple plug-in installation of Micro Bullet LED Turn Signals. Built in converters allow the amber turn signal to override the red brake when braking & turning at the same time to provide greater visibility to the amber turn signal. Required for plug and play installation of parts CD-MICRO-AR-B & CD-MICRO-AR-C (sold separately).