My 730d has been giving me a few problems lately and today I got in the car went to turn the music up and nothing. In fact no music....? The I-Drive had frozen on the Entertainment screen. So I parked up turned off and back on, nothing. Ended up taking out the battery cable to the fusebox and it made the menu's work again. I can use everything apart from the audio as I have no sound and it doesn't even switch on, the trip computer has no numbers and the sat nav is a blank screen.
Somebody has told me that it could be the Sat-Nav unit but it appears to be ejecting the disc fine and has power going to it. I think it could be the AMP as I've read a few post's where they do go but that is the Logic 7. This is the standard Harman Becker one.
Has anybody had this before? If so what did you do?
Thanks in advance.