I've a key that used to work, which was then lost, then found. Its since been removed from the ECU I'm guessing when the new key was issued . What kind of cost is involved, so the key is functioning again? I presume the chip is still active? Can a specialist do this, or this OPC only? Is it less complex or involving as the key was active prior? Is this just a Durametric reader job? TIA- Dean