I bought an Audi navigation unit from Europe and want to put it in my 2006 S4. I have the Symphony unit in there now and need to know the codes in order to swap over the two units. Has anyone done this? Does anyone know the codes? Do I need to do anything else besides use the new plugs and CD that came with the navigation unit?
Thanks for your help.

The CD based RNS-D needs an external TMC tuner to work properly. The newer DVD based RNS-E is easier to install and doesn't need an external device. The search is your friend, as well as the navplus.us forum.<ul><li><a href="http://www.navplus.us">http://www.navplus.us</a</li></ul>