if you pay a dealership money for a radio code, thats them being a douche, probably some guy making pocket change paying 500 is just straight retarded! they shouldnt be charging for that. open the glove box and look for a small white sticker. usually on the inside of the of the edges on the outside of the glove box. so that when its closed its against the dash. if you have a center console check there, pretty much check everywhere you can that opens on the dash or center console. different dealers use different spots.