I want to install a factory nav system in my 03 CC dually. I see some systems are for non bose and others for bose only. I do have the bose option but dont see the Y91 code in my glove box. Which nav system will work and how easy is the swap? How much other stuff is needed?

If you don't want to swap out the amp to bring it to 'lux' standards, you need the non-lux unit. Look in the Do it Yourself section and you find enough material on it to keep you reading for a month.

Ask and ye shall receive:

http://www.dieselplace.com/forum/showthread.php?p=1923284#post1923284

Jason must have been reading the Electrical Forum today....:lol:

I put a non-touch screen nav unit from a Buick Rendezvous in my non-Bose truck (stock single CD stereo). Needed to install the GPS antenna and get a mapping disc. The GPS antenna install takes about 20 minutes, putting in the nav unit takes less than 10 minutes.

Only problem now is the wife wants it to play DVD's for the kids. So looking into other units. According to posts in the DIY forum, my unit (according to part num) will also work in Bose Non-Lux. Anyway, considering getting a full-blown nav/DVD player, so if I might be willing to part with my nav unit. PM me for more info.

Y91 is lux, if you have Bose Speakers (look at the panel on the front doors) you can install a non-lug nav unit