I think you would be better off buying a Garmin or some other stand-alone GPS, rather than replacing the nav Disk you have, if you often travel where you need turn-by-turn directions. I have an iPhone and an iPad and I can't recall the last time I used the onboard sat-nav for guidance.
If you need something more robust than the iPhone maps app, go with a portable GPS. Most now come with lifetime traffic and map updates. Besides, the disks are expensive. I think the price for the current issue is around $200 dollars. A Garmin can be had for about half of that and no more update issues to boot. Cheers. Jorge
PS: welcome to the forum; if you haven't done it yet, go to the introduction thread and say howdy.
2006 Limited, Light Khaki Metallic, Light Graystone/Dark Khaki Leather, HEMI, QDII, Rear DVD, REC Nav w/09 Database, woody side, EGR hood deflector, AEM Gun Metal Brute Force CAI, tilting rearview mirrors.
“I did not enter politics out of philanthropy but rather as an extension of my own annoyance at having inherited freedoms infringed by power-crazed idiots spouting gibberish”. Nigel Farage MEP; Leader, UK Independence Party
Last edited by JeepJorge; 11-18-2012 at 08:58 AM.