Hello,I'm a new member with a new car ( under the motorbility scheme) E.Rifter GT. 2025 I am totally confused by the computer system. I want to know how to turn off and keep off the radio. Even when I turn the volume down it creeps back up on its own. And I can't get the mood lighting to go off (the long strip light) on the ceiling. I'm fed up enough with having to turn off the dangerous lane assist ,every time I get in to the car. Oh yeah, is there a sat nav. In it ? If so how on earth do I turn it on . downloaded the manual. But that's just 330 pages of nonsense. Any help please, ?