Hi guys, I currently have a sat nav unit with 6 disc changer in glove box and would like to connect an aux input to my head unit to use my ipod. I do not wish to remove my cd changer and am a little unsure what sat nav unit I have. The unit has a full colour screen, is dvd based sat nav and houses 2 sd card slots behind the screen, is in my 2007 S4 cab with Bose. Have read posts on here regarding it being possible to RNSE units, not sure if mine is! On that note, what does RNSE stand for??