Having now sold my Audi the double din cage I bought when I planned on doing an RNS-e retrofit is now of no use to me! If anyone wants one for £30 delivered let me know. Its the genuine Audi item and will fit any A4 B6. I've also got a steering wheel control module taken from my car when I retrofitted cruise control. Its the "N" version which enables the DIS function, subject to you changing the wiper arm for the one with the right buttons! They cost over £100 but i'll take £20 to get rid of it if anyones interested, and yes it is in perfect working order!