Hi I have a 2004 Mazda 6. I have already had a 7" Valor Flip-Out Touchscreen installed in my car. It has fm, satellite, and dvd capabilites but no navigation. I found a product from mazda called the OEM Navigation Screen LKQ. I have seen it installed in 06 and 07 mazdas. I know most parts from 04-07 mazdas are compatible, but I want to know if the navigation screen will be. Also, would it interfere with my Valor screen.