So I'm new to the world of audi but been in the VAG group a while and I've got a couple of questions if anyone can help me, firstly can you retro fit the rear blinds on the rear doors of the avant as I now wish I had these due to my little 3 month old son, next has anyone retro fitted the 6 c d changer as I don't have it as standard and when I go on long journeys with the missus I can't have the sat nav on and listen to Cd's with the rnse unit. Next question is to do withe the rnse unit itself if I was to buy an interface which has aux bluetooth usb and sd card slot will this just be a plug and play or will it need activating? As the place I was going to buy it off said it is a straight plug in where the cd changer plugs in and the changer can still be used sorry for the long essay but any help would be appreciated