Hi all, I have a question that may have been answered already in one of the other questions. I recently purchased a 2013 Edge with a 4.2-inch screen and Sync and satellite options only. I would like to upgrade and add a backup camera, and swap out the 4-inch screen to an 8-inch factory screen, with Navi and all with the Ford Touch I suppose wanted to keep it OEM. My question is are these units plug and play? I have found the items I needed from LKQ for a fairly reasonable price, on a low budget I can get the coverplate, 8-inch screen for about $350, would I need to replace the radio head unit as well? Or would it be easier to spend roughly $1000+ for an aftermarket Unit.that is roughly 6-7 inch screen? Thanks for any and all input and suggestions.