I bought this radio/cd player to upgrade my P122, in my '01 Forester. Not knowing that I needed a CODE for the new one. No surprise- the seller doesn't have it and will not pay for the dealer charge to get. Did Subaru use one generic number to cover all of these P123/ 86201FC080 models? If yes- what might it be, and how do you go about resetting the code? Any info will greatly be appreciated.