I just purchased a used 04 Santa Fe. It came with only one key, and did not have the little metal tag indicating the key "series." I tried getting a copy made at a local place, but it won't insert all the way, though to all appearances it's identical to the "master" key. Is there a chip hidden inside this little rubber head? I hope not -- I hate these big-headed keys.
Assuming it's protected by a chip, and keeping in mind I don't have that metal tag, how can I get a copy of the key?