Hi guys i am currently in the process of getting a RNS E to my 55 reg audi a3 sline which has a single din radio. I was going to buy a RNS E and install it myself afetr buying the double din kit aswell (cage, switches, plastics etc.) but after looking on ebay about some companies that install them for you and fit the RNS E and also use vag to code the DIS and the necessary stuff. is it worth just buying the double kit and a RNS E and doing it myself or would it beb est to pay someone th do it all? if i was going to do it myself is it as simple as changing the single din cage and fitting the RNS E and away you go or do you have to change stuff with the vag like the ECU and MODULES? thanks anthony