[Subanez]

You can get the radio code from your dealership, though it usually takes them about a day or so to actually get it, and they might charge you $25 or something for it.

Other than that, I'd double check the back of your owner's manual to see if anyone jotted down the code...that's where the dealership usually puts it when they check it for you (at least at the dealerships I've been to).

-Kevin