I purchased a radio to replace my factory radio in a 2010 Versa HB recently. Crutchfield.com sent the parts and had videos on how to install it. However, I ended up taking my car to a local audio shop and he installed it for me. Sold the factory radio on Ebay. Anyway, he twisted the wires and changed the plug to fit the radio as I watched. It was not obvious to me and glad he knew what he was doing.