Re: Were 03's equiped for the factory Nav?
No, the '03's never offered factory nav. They can be retrofitted. It?s my understanding that you need the nav disc to be running to operate the system, so you can't navigate AND listen to discs simultaneously without an add-on disc changer. Perhaps someone who has actually done this retrofit will reply. I have installed XM, which runs through the factory head unit quite nicely as an additional band and is supported by all of the factory controls/displays. I hope this helps. t~
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