Another prior-to-purchase or order question: Do I have to have a Nav equipped model in order to have voice control over other components such as the radio and telephone? I've looked at the online manual and I can't tell. I would certainly welcome your clarification.

The Nav system would be nice to have, but may not be an option if I choose to purchase in the short term and with the mix and match of features and interior/exterior colors I seek.

Thanks, Roger