OK so I fitted my RNS-E about an hour ago, plugged it in just to see what it was like and EVERYTHING works without coding? Checked- iPod - OK Nav - OK Bluetooth -OK MFSW - OK Bose - unsure yet. Turns on/off with the ignition as it should. Can anyone explain this? Do you think the previous owner had it fitted but removed it when he traded it in to the garage I bought it from?