Does anyone know if there is a nav system out there available aftermarket that will integrate with the MMI buttons on an '06 A6. I would really like to continue to use the MMI buttons like pressing am/fm, then pressing nav and have it come up, but I would really like to avoid the $2200 dollars at the dealer. Does anyone know if there are any that exist?

Thanks,

Check out www.kufatec.de for an example, although I don't erecommend using navparts. See if you can deal with them directly.