So my 2014 A3 8V 1.6 TDI has an issue with the MMI. Basically sometimes it will register no satellites and therefore give me the wrong position on the Sat nav. Sometimes it works fine, sometimes picks up or loses satellites part way through a journey etc. It doesn't seem to be relating to obstacles around the car blocking signal so I'm guessing a loose cable? I've tried resetting the MMI a few times but it doesn't help at all. Any help would be appreciated! Cheers, Adam