Hi to all who have fitted hid kits with canceller/resistor whio still get flicker and warning,you must fit 2 resistors per side,plug one resister into the other and into ballast,2 per side problem solved,as one resister per side is not powerfull enough to trick lights into thinking you still run normal h7's ect i have fitted 12 kits into mercs with 2 per side and all works fine.