To install KIJIMA LED blinker, use KIJIMA IC blinker reay (4 pcs included). In the case of blinker indicator is filament bulb type, both blinkers flick at the same time. So indicator is not available. Remove bulb or wire. Use indicator connection KIT(304-0521)(sold separately) to use indicator. If indicator is 2 light type (right and left has different circuit), you don't need to use indicator connection KIT. For AC vehicles like HONDA APE etc., AC/DC conversion adapter is also required. Not for position. Better to use screw(M2) installed, to avoid falling.