To make a long story short I broke my navigation disc and then someone tried to break into my car and steal my unit even though it didn't have the face on(stupid idiot). So I started to take my radio out every night! This made me lose all the information in radio! I brought a green update disc from some one off craigslist who got it off e-bay! When trying to update my radio it still says inapproiate disc! I also notice that the disc does not have cdmv 80 on it, it just has update disc! So what disc will I need to get my navigation system back on task! Please help been not working for si