So I bought a used 2004 Volvo S40 and it only came with one key. I want to have a spare key, but this is not the type that can be easily replicated. I am not sure how to describe it but its sort of like a pocket knife in that you press a button and the key flips out. The key also has buttons to lock/unlock the doors and sound the alarm. So, where do I go to get a spare key and how much should I expect to pay?