av cable for Audi Audi AMI to USB female AV cablefor AudiAudi AMI to USB female Power supply: 12V Frequency: 20Hz to 20kHz, ± 2dB Fornat: MP3 bit rate: 8 to 320Kbps ( including CBR, ABR, VBR ) WMA bit rate: 8 to 320Kbps ( including CBR, ABR, VBR ) Power consumption: ≤ 1 W THD: 0.05% S/N ratio: 90dB