Apps like AudioWagon

Here are some great alternatives to AudioWagon by MoleMan :
JS USB OTG Trial
JS USB OTG Trial
★3.7
USB Media Explorer
USB Media Explorer
★3.9
USB Audio Player PRO
USB Audio Player PRO
★4.0
USB Audio Recorder PRO
USB Audio Recorder PRO
★4.0
Vinyl Cast
Vinyl Cast
★3.7
USBMIDIConnect
USBMIDIConnect
★4.4
Media Classic Player
Media Classic Player
★4.1
Sound Tune
Sound Tune
★4.3
Radios 100FM Music - Car Mode
Radios 100FM Music - Car Mode
★4.0
ArmAmp Music Player
ArmAmp Music Player
★4.5
Fermata Media Player
Fermata Media Player
★3.6
Music player - Mp3 player
Music player - Mp3 player
★4.3
Media player classic
Media player classic
★3.4
Music Player | MP3 Player
Music Player | MP3 Player
★3.6
Music Player - Mp3 Player
Music Player - Mp3 Player
★4.4
Hush: Android Auto Audio Fix
Hush: Android Auto Audio Fix
★5.0