pmadren

My wife and I just bought a 2010 Ford edge Limited with the SYNC system, factory SUB without NAV. Looking at adding the Pioneer or a Kenwood unit. Would like to add the FORD top of the line RADIO with nav. I have seen some on EBAY but not sure what the part number is that I need. They do not list a EDGE on some sells but looks like the radio needed. Can someone tell me the part number I need and also what is needed to make the top of the line radio with NAV work with the EDGE. Thanks for all your help.