Factory Nav Unit
#1
#2
This one here would work..........I put one from a 2008 Mercury into my 2005 King Ranch.......I love it and it works great!
http://cgi.ebay.com/ebaymotors/FORD-...#ht_1304wt_566
http://cgi.ebay.com/ebaymotors/FORD-...#ht_1304wt_566