I have a 2010 range rover vogue and can not get my sat nav system updated its the Denso hard wired system, the only update I was offered was for a 2014 update and that can only be done by a handful of dealers in the country. So what I want to do is connect my iphone to my system, I have already tried plugging in via the ipod connector but no joy also tried plugging it in to the USB connector again no joy. I have an aux IP somewhere in the car so that will be my next try I just need to know what type of plug I need for the Aux input. Can anyone help?