Audio Systems: CAR NAVIGATION SYSTEMS, car navigation systems, 2006 gmc yukon

Question
Mark, can you advise on after market car navigation systems. I have a 2006 GMC Yukon SLT. and would like to have a very good, user friendly navigation system installed that has a large, touch screen, bluetooth capable with my blackerry from Tmobile and can string several addresses together. I am not particular about in dash or ceiling mounted by would like a very good system. Can you help me decipher some good candidates or can you refer me to someone who can help ?

Answer
I would try first going to www.crutchfield.com and fill out "outfit my car" then look at the navigation they have.  the plug and play stuff may work for you if you dont want to change out your head unit to a gps capable one.

good luck and let me know.