what are my music playing options with mmi ami etc

[Rick]

All i have is the 6 cd changer at the moment.
I have picked up a 6 disc dvd changer with a view to get that fitted at some point as the boy seems to be gutted he cant watch movies like in the ST, im sure that aint a straight fit.....will need some widget or lead somewhere...
Do I have any other options for plugging in anywhere to play music from my phone or would i need to fit another gizmo like an AMI unit or something?
Are there any spare sockets or things located in any of the existing units like av1 or av2 as that shows up on the tv screen although i havent actually seen them i believe they are in boot left hand side under the nav unit.
There really is alot of car to investigate and learn!!
Thanks.