Squeaking and creaking of the “maps & more” system (when playing IPod)

Good day, I have now driven 1200km with my up! It likes excellent, a lot of comfort, fast enough and the design has succeeded very well! I am happy to drive with it every day. But I have a little problem with the Maps&More Gerat, especially when I play my Ipod. The Gerat squeaks and creaks then sometimes, about once per minute (or once per two minutes). Has someone done the same thing? The Gerat is well connected in the dashboard I think, so what is I only noticed this when playing my Ipod (I have hardly used the radio yet).Other problem: the music of my Ipod beats over when I play it with maps&more Does anyone have the same thing? Greetings from the Netherlands!