I ordered the nav SD card off of Amazon and it didn't work, so I had a replacement sent and that one doesn't seem to be working either. The videos I saw online was just putting the card in and it automatically unlocked, but my car doesn't respond at all. Am I doing something wrong? Has there been an update? Could I have gotten 2 bad cards? The way they were packaged made it seem like 2 different sellers fulfilled the orders.