unfortunately you will need the Dietz 1280 for TV-in-motion with the A3 or A4 RNS-E.. the speed signal is delivered via CAN, as you know if you disconnect the can-bus, illumination will not work and the unit will shut off after ~30mins.. the 1280 filters out the speed signal, but allow other necessary signals..
the RNS-E for a C5 A6 still uses speed signal over GALA so a simple switch can be used -- this is not an option for the A3 or A4..
also the volume level is not displayed on the RNS-E..
the RNS-E for a C5 A6 still uses speed signal over GALA so a simple switch can be used -- this is not an option for the A3 or A4..
also the volume level is not displayed on the RNS-E..