So i have just purchased a 2010 A3 Sportback and I am looking at replacing the head unit. I want Sat Nav and bluetooth and the RNS-E with bluetooth was favourite until i stumbled across a few others. Has anyone else got any experience of the following?! Zenec ZE-NC3131D Pros: Fully interoperable with the FIS and native Canbus systems. Cheaper than the RNS-E with Bluetooth module. Simple out with the old, in with the new and go. Cons: Never heard of them before?! Alpine INE-W925R DAB Navigation Pros: Alpine! Apparently May work with the FIS systems. Cons - Not sure if works with the FIS - More expensive Any thoughts opinions and/or experience?