Hi, thanks for all your replies.
Well as it turns out the USB is working all fine now, cheers - unfortunately it has now reverted to ALWAYS starting on the media setting.
The start button - I press it in, it turns over as normal for about 2 seconds and then cuts out. However the issue stopped this week for 2 days. It literally happens on colder days ( I know this may sound silly).
The garage has agreed to run an "initial diagnostic" to see if anything comes up on there..as the drive to the garage will mean the car is warm and I will not be able to demonstrate the problem.
Thank you all for your help though. With the Blue and Me thing for your iphone,, are you saying you HAVE to use the controls on the steering wheel?? If so I think I might aswel just get the memory USB stick.
Need to find a thread on what the best stuff is to wash the car with as its black and I need to wash the car, but not really up for taking it to someone to butcher with grainy sponges.