Im been trying to smog my GN for the past few months now and when it aint one thing its another. Now I must go to a Test Only place to smog it. So I went and since the car is not from California, I have to take it to a Referee to have them inspect the car to make sure it is smog legal and put a sticker on it. Well I call the 800 number they give me to make an appointment and they tell me a need a letter stating the car has the proper emission equipment for smog in California. They give me another 800 to get the letter. I call that number and now they say the cars too old and I need to get that letter from the Manufacture of the vehicle...... and they dont have that number. Has anyone delt with this before and does anyone have a # for GM to get this letter? Its a long shot but Id figure Id ask here first! Thanks!