If you want to hear the engine sound, you need to set it to eoe only.
After configuration is done, Orbit resets the ECUs but sometimes after some configs, restarting specific ECUs again is required. Or leaving the car locked for a period of time.
So, change the setting to EOE and
reset > ECM, AUD, IHU and CEM
My original settings was EOE (s60 T5), It sounded like fake turbo boost at low rpms. I like quite driving experience. So, I put it to EOR. I do not hear any humming noise with my retrofitted B&W AUD and it is really quite in the cabin.
After configuration is done, Orbit resets the ECUs but sometimes after some configs, restarting specific ECUs again is required. Or leaving the car locked for a period of time.
So, change the setting to EOE and
reset > ECM, AUD, IHU and CEM
My original settings was EOE (s60 T5), It sounded like fake turbo boost at low rpms. I like quite driving experience. So, I put it to EOR. I do not hear any humming noise with my retrofitted B&W AUD and it is really quite in the cabin.