Discool: thanks. I am in Sweden so although I am using an Approved LR Service Centre, I do not have the luxury of a "pure" LR Service group. I have asked the Swedish dealer to contact the UK service center, but I have not yet heard back from them. It is a single CD player, so I will try...

Thanks timc1967. If the unit does have an internal fault is it better to just buy a different audio system? Are the standard Rover audio system considered good (understand that they are OEM)? Anyone have a recommendation of an alternative audio system if it comes to that? Thanks :)

The one problem prior to it the radio coming on with the ignition off, was the week prior had a problem getting a CD to eject... the CD worked 2 days later.

Had Defender since new... love it, but seems like the newer Rovers still have some of the electrical problems on my '91 Range Rover.

2011 Defender 110 Standard Land Rover audio system from 2011 with CD. I had a problem with a CD coming out of the audio system, but I tried a couple of days later and the CD system worked fine. Then a couple of days later I heard music in the Rover even though the ignition was off...