Motor Driver interference Servos

Ciao,

I am building a new extruder, here some infos, and I am having an issues with the servos and the motor drivers.

Basically when I move the extruder in the X or Y direction, so the motor drivers 8825 are ON the servos starts to move left and right, which means there is some interference from the motor drivers into the servo PINs (using 6 and 11 in AUX) on RAMPS 1.4.
I already thinking to change the pins for the servos to other further from the motor drivers but not sure it will solve the problem.

The RAMPS 1.4 runs Kimbra-Marlin firmware, maybe need to change some software code?

Any suggestions on how to solve this issue?

Thanks
Alessandro