Any sifu mind to teach how to tune the active crossover?

i think there is no teaching, it's all depends on ur ear, tune it to the liking of ur ear. Nobody can tell u to set at which frequency will be best, maybe arnd how much Hz but not pin point accuracy.

I see. I just scare will spoil my speaker that why wanna ask advice here Thanks for da info

Why don't you go to a pro installer who has an RTA (real-time analyzer)? He will be able to tune it based on your installation, i.e., your sound output within the sound stage (car cabin). But pls bear in mind there is only so much he can do, if your equipment has frequency humps all over the place he can only isolate and attenuate to a certain extent, anything above that you may have to change components.