I came to do oil change and in same time ask servi...

I came to do oil change and in same time ask service adviser to check why my radio some times in driving mode switching on and off? when I came he told me that nothing wrong with my blue tooth problem with a power to my radio, he told me that I should go to my salesman who sold my car to me and he will show how to work with blue tooth, but he did not understand that problem not with blue tooth, problem with a power witch switching on/off