I currently have an iPod dock installed in the arm rest with my current RNS510 installed in the car.
My understanding is you can't have both an iPod dock( where the iPod sits inside the armrest and works in that respect, and also an AUX jack ( wasn't an option on early 2007 cars ) only on later Ed30's and GTi's.
What's involved in changing one to the other as I would like to connect my Samsung Galaxy Nexus / Note 2 or S3 mobile to use this socket.