I am new to this navigation stuff and am putting the new navigation headunit in my truck. Which cd do i need. I live in north Louisiana if that matters. I see 3P and 6P and 7P but have no clue what any of that means. There are just so many options on ebay so i dont know which one to snag. Thanks!

 

Each one is pretty much the same but are upgrades. I have a 3p in my 07 nav unit, but the 7p in th 09 version. So if you use your unit a lot and need the latest version then you want the 7p but I get around just fine with my 3p. But All 3 will work in your unit.