To 100% guarantee success you need M3fkash and M3 m mode SZL and m mode buttons.
but some people have it working on stock hardware as well. The reasons are varied
The buttons are wired differently (4 different ways possibly) in some cars. The paddles are different as well also some SZLs wirethrough things like heated steering,auto wipers etc etc
but some people have it working on stock hardware as well. The reasons are varied
The buttons are wired differently (4 different ways possibly) in some cars. The paddles are different as well also some SZLs wirethrough things like heated steering,auto wipers etc etc