Read usb mp3

I meant that it was going to take to long to get the rmp3 delivered to me, and was going to use the SD card add on to my nano board. And just use the rmp3 serial commands on it.

But I think I will be getting the rmp3 in time, so hopefully will be able to use that. It seems that most of the commands I need are all available, and it should just be a case of me putting them together.

Thanks