Hi all, Looking for some advice on upgrading from a very old 2G to 3G, but only partially. I have a RS6, which came with a red screen 2G (so low-res MMI) and Bose. I’m installing RSNAV so I actually don’t care about either the screen or the nav functionality of 3G, but I just want something compatible with what I have - so I’m wondering if I can upgrade just the head unit and the MMI unit maybe? I.e. ignore the screen etc. What would be the minimum number of units required for this? Head unit, CD changer and CAN gateway maybe? Thanks for any advice!