All the dealer will ask for is your VIN #. If the code does not work then you will have to pull the stereo and give them the serial number off the back of the unit. That is what I had to do with mine. Some where along the line previous owner changed the stereo to another factory one and my VIN # didn't match. But they were able to use the sereial number. If the stealership asks you to bring it in that is all they will do. $450.00 bones and 20 min later. What a rip off.