ok well ive decided to take my stereo that the previous owner installed out and put a stock single din in. well i never got the stock radio from the po so i bought one off ecs tuning. i got it all installed and hooked up my cd changer, put in the code and the radio get out of safe mode and finds channels but does not play anything. i get no sound from it at all. any help would be awesome. btw i have a 2001 wolfsburg jetta.