Ok i have a 2007 RNS-e on its way in the post with all cables needed (apparently) but just a few questions: 1. Curretly i have the Audi Bose speakers etc, im assuming the RNS-e is compatible? 2. I have downloaded the 2009 rns-e maps but have read that not all DVD drives are able to burn the file to a disc, does anyone know what drives are able to and why this is? ie image burning parameters etc?