We recommend use of this auxiliary wiring harness with all power consumers. With this wiring harness, you also have the option of fitting such power consumers as grip heaters or fans to your TC or FC. Please note: The power consumer is now connected directly to the battery. Consequently, the battery is also drained when the engine is not running, unless the consumer is switched off. Options available: Y-distributor 777.11.979.010 or 777.11.979.044.