hey guys, I just bought this car and it drove fine on the way home about 85 miles, car was not driven for atleast 2 years so the front brakes were sticking, but now they want to lock up, what is causing this and my radio was working fine, I did a few things and now there are 4 spaced lines on the screen when I push the power button, I called the MB dealer and he was able to give me the code but this thing wont even let me put the numbers in, what did I do, is the radio toast now, any help would be great, by the way, these cars are awesome,,,,Thanks