sorry guys new to this im a littl lost i dont know what nav i have it's in a 04 330 zhp dont know if it's mk4 or mk3, i downloaded the file wanna know it it's safe to put it in my nav and how do i burn it on dvd and put it in the dvd drive or on cd and put it in the headunit. . navi in menue sais SW4-1/30 if that helps