First of all, the saddlebag light XF2906C5899-BK is only available for six-wire plug models. This is not a replacement for the original taillights, but an auxiliary warning light.
Second, our 12Pin to 6Pin wire harness adapter XF2906C671 is designed for tour pack lights.
So you need to connect one more power cord to the blank plug, As shown in the following figure, this terminal can be used by connecting it to a power supply.
