Hi All, I have a 2012 A4 Wagon which has been imported from Japan. The working frequency range is lower than broadcast here. Apparently, there is a band expander installed, but it doesn't seem to make any difference. And the previous owner has some stored music in the jukebox with Japanese symbols. I have no idea what they are. Is it possible to reflash the radio to change the tuning frequency and update options?

I have also tried using a Bluetooth transmitter without success and kind of wondering if the aerial is even plugged in. Audio from the transmitter is never quite tuned in and is overpowered by other broadcast and a lot of static. I think there is a Japanese based TV system installed though everything appears stock. I'm really not sure where to start.

Thanks everyone.