For a couple of months I've been looking for a system to stream audio from my Android phone over WiFi to an USB receiver in that way I can use the steering control of my car to scroll through songs and albums etc.
The only way to do this is by using the bCoda JAK Multishare stick, but it cannot be used to create subfolders. Other than that, it works very well.
I don't know such a thing is possible with a Raspberry Pi setup?
So in short:
Android phone with songs > wifi stream audio to Raspberry Pi which is plugged in the USB port of the car stereo > playable and controllable with steering control of the car, in the same way the songs are on a regular USB drive.
Thanks in advance!