Ok to to tune manually goto the radio then fm then all stations then press and hold the next track button on your steering wheel >>| that will rise each channel it can see one at a time.
Or goto your radio and select tune and inout the radio thation you want shown in this picture.
Or click on a radio station from favorites and select + or- for diff channels and scan and that will go up based off each channel it can see next or tune into next.
these are all the available tuning methods I've found. Hope this helps. It doesn't function like the manual knob where you tune with each click.
The closest thing to that is to press and hold the next channel button on your steering wheel. Or use the tune setting to input the exact channel you want
View attachment 6948
View attachment 6947